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Plplorna in Civil Engineering / Diplomafur'i Etectrical & Mechanical En$ineedn$l
: ,Term-Erld Examination
Decembet, 2006. '
3ET-01 1 : MATHEMATICS-If
Time : 2 hours Maximum Marks : 70: , l t . , . .
lVqte ; Qu estion numbt€r I is compulsory. Do any fourguesfions : ou:f ,of the remsining questions
n umbered 2 to 7. Use of calculators is nof
; , pgrmi t ted. ' ' r " r ' ' i
l. (ill i i ,
(ii)
(iii)
Fiqd, Ih*, lufr , and,, the- pfqdqct,pt,,thg o rgoJ,$, .ef th", 'i quadratic equation 3xz 2x - 6 = 0.
Find the characteristic and mantissa of
r , , l o $ x = r 3 ' 0 7 8 4 .
, A sequence {a,.,} is givelr Oo the fo}t'frl}lai''' ,
a = 10 - 3n. Prove [nat it is an A.lP'rl'n
i,r, (iv) The third ,terrn of a G*P,. is, 4. Find the product, of its;
five ierms.
(v) 'Giue one vectof that is like Zi +N , A
is unlike 2l + 9 t( . -
(vi) Prove that cos 24" + cos 2A4o = 0.
BET-01 1 F'.T.lO,.
i"*-' l"i"'irr "lE g hes in the IIIrd quadrant andI i itVl$' :j . , . , " , . , .
the value of sin 0.
t a n o i , f i n d
i i . j ] j r , - : . , l i , i f : l i " . i : ' . . , i i " i 6 1 ' i . ' . i : . i : , , l . : l : j . : l
(viii) r,,FiSd fuudlFhr.qft sf $e,,pslnt (. , ll,, trsnlrttp,gliril#3 x 4 y - 9 : 0
t : i l t l i f ; i t . , , i . . _s : ' ; , , i . . , l , , i , . ; , . * : i .1" ; " l i i i ' ; : , i . : i ; :
(ix) Can a triangle ,wjth sides 1 cm, 2 ,cm and 3 cm beformed ? ci"" i;iior,r'ioi t;ri'uni*ur.
' a
(x) Find the ierrtre),lirTa tne'Filiiu, cfilna$'iii$"3 x 2 + 3 y z + 6 x 4 y 1 : 0 .
ri''a th; egcen$i.iif "l ,5*1 J +y' = 4, -Using Binomhh,theoreffl, cornptrter 1 1411'.r: :'
BEGOI 1
(xiv) Drarp a"rough sketch of t,h* arc sine function;i i , , : ' . ; ' ' " , j , ' l ' : : ' . , ' . ; , ' . , ' , 7 4 X 7 = 7 4
i . : . ) . ' . . . : , ; . r t l , " , t . , ' ,
2. (a) Find the number of terms of an,A-P. whose.surn is
40 andulfficiand, fifth.,,termp ., al1e,,, _rr! 14,,,,, aqd ,,3,,';
respectiyqbq nn i l
(b)' :'Gh/en , log, 2 o= 0i301, evaluatd log (i#) ,', ' ; 4, ' ' : . , . , . ,
" . t : : .
(cl...'Wfte',f,9yYn?naIsprithpi,fgrj$lp4.n9'?,Q;d,..rgif:sryrber.',by a l-digit number, ng ,,, i . ", :,,,, i : i :;, , i s
i " r " r r \
l _ ' , - . ' , ' . r i ' , ,
2 '
3. (alt .". If, g:and' .$larer the. roots, of ,the, equption:, , ' r.; , : i' .1
u*2'* bk'+' crir O, foim, d quadratie eQuatidn,whose
roots are oz and p2.. . t
e
bl ' ,,,Find the-t91rrn qontaiping y" in, lhe qxpansipn,qt.,; (?x - yr/2)10. ; ,
(c) Give a flow chart for an algorithrn to'i{ind'intersection of five finite sets.
. t ; : , : i . l ' ' , i
(d) I f T+ = a + bJ7, f ind,a 'and,b. 1 ' " ' ' :,13 + J7
' r :
4. {a) 'lf l(0,'0), ('3, 0) and (*,"y) arb veftices
ii tr iangle, f ind'x and y.
' i ; ' r ' : I '
t 't,
4, ' . ' " i . , 1 : ; i
Find the sine of,the angle2t + 3i. :
(c) Find the equation to the straight line which passes
through,thA pointl'(3', 4| and hAS.i'htercefite;:dri theaxis whose sum is 74.
i
Find the equation of the circle ,,of radigs,,,, 1f, andconcentric with the circle L
and one parallel to A. Justify your choice.
(c) Find the vertex, focus, directrix and latus rectum ofthe parabola *z + y : 9x 74. What will itseccentricity be ?
(al
(b)
BEtrOiI 1 3 ,
6. (a) Find the angle between^ tlle' ,,', , points ' ,('!2, -,,5) ,and (5; ,1,2,)
*2 + yz - 169.
(b) If p, e, r are in AP, a
is the GM of q and r,: , . i i n A P . , ' ; r , , i , ; , ' ' , :
tangents, dtraurn ,dt the ,
to the' circle ',. , j
is the GM of p' and q,'and b
then prove that d2, q2,'b2 are
; i '
1 , , . : : , : r ' . . , . ' ,
'tan 105' withbut using
t i
(c) Find the value of '
trigonometric tabl€si, 4
7. (a). . t . , I
l, ',
,$t ,?"b?".*ed frgm, th? ,top of . a fisht-hous" ,100 m
high above sea level,, the anglg of drgRressipn of a
ship saihng directly towards it changes from 30o to
45?. Deterrnine the distance travelled by the ship, ! i i ; . r ,
during the period of observation.
( n - - r ) ! ( n + r ) !
6
:-, (c)
,t!.,
i t. _ t t
,r.|,\.
,.'.
l
.':' I ,r
: ' '
BEIT+O'I 1
: /
in Er*l*HrlH:ff ineerins
; " Decernber, 2006
" ,'','' . ' :
Time: 2 hours MaximLtm Msrrcs ; 70
Note ,g, , , ,Ques tian no. f. is compulsory. Atternpt e'n:y fiour. g u e s t i o n s f r o m q u e s t i o n s n o , 2 t o . 7 , U s e o f
l. , Answer any geaen"part$,: (, 2x7=74
(al n rr,,F4plaiR dphy,,,thg, atmosp h erlc, pre $$pryg,,,decrgaseF, with',altitude.
(b) State Kirchoff's law of black body radiation.l
' . .
(c) E*nl|11 compressions and rarefactions in a lo"gitudinalwavd.
' : : , 6 i t ' , ' t r . T 0 . ' ,(d)
, O*,yrurllo,
,betrue:" the
,algle of deviation and the,
angte oI rncidence for a glass prism. " :' i i
Q) Ske-tch the electric lines of force due to point charges(i) q
(0 Define Reynolds number.
t, ' (lN), Why do we use shunt in a galvanometer ?
..tsET-0lZ 1 ,, P.il;O,
2 i '
which
3. (a) Define therrnall frdr.i.tiuityi of u:i'*Gtance. What is
its unit ? 3,r i . . ; ' , ' ' i
t ' ' . , , ' " i
(b) The wavelength of a sound wave in air is 150 cnn;":."rri"rCalculate the'frgguencg of :s6und if its velocity.fn alr:i,r 6,11i;i"
, ! 1' , ' i S ' 3 3 0 ' ' m S - * . , " , ' , i ' ' : ' : , ' , ' . 1 , , : 3 ' '
."(.J;.- . , . .Dq!fP.9"' . , jhf ' .o,,st119tiol, . .q. ld,.worki"sH.,u. '3".* 'astronomical telescope with the help of a: diigram,
, ' ' .
(d). .' ' An-.kon-needle,sloats ^on' clean'water but '$iHlftlwherr,l
sorne detergent is added. Explain. . ': '' i I 3
; . l
4. (q) Draw a circuit diagram of a meter bridge arrarfged to ,:::'
"'"'l-t'efmineut 'in '
unknown resistance. e*plriin' itsoerermlne an unKnown resls] bvft,,,
working principle and write down the foirnr',ilX.'fo*d,. ' } , . i
(b)
(c) '
BEf:042
: . . : i . - . . | . , i ' . i . , ' : . i , : : . . . . , . i . , l ' l . ' , . ' ; , . . . - ; ' , i l 6 l q - / 6 j | ^ , ^ ' ' . :
A galvanomele1 with,,3 coil of lesistancq;,of ,,1?;0 Q
shows full scale deflection for a current of 2'5 mA.
Ho'w' Wilt you conu"rt it into a voitm eter of range 0
to 10 V ? Determine the net resistance of the meter
in each case
Explain with diagram how an aeroplane lifts itself '
abovg thg .g r , ound . , r . , i j , , ' . ' : i ' , , i , , 4
5. (a) State Avogadro's law. Derive the expression forAvogadro's law from the expression for pressure . 5
(b) Write Newton's formula for velocity of sound in agaseous medium. How did Laplace correct thisformula ? Write the corrected formula.
(c) A convex lens of focal length 10 cm is combinedwith a concave lens of focalilength 15 cm. Calculatethe focal length of the combination. 4
6. (a) Write the characteristics of the image formed by aplane mirror. 2
(b) Define the intensity of sound. What is its SI unit ?How does it change with distance ? Name the otherfactors on which it depends. 6
(c) The volume of a sphere contracts by 0.01 percentwhen taken 1 km below the sea level. Calculate thebulk modulus of the material of the sphere. Given :the density of sea water is 1000 kg m-3 andg - 1 0 m s 2 4
(d) List the factors affecting the speed of sound. 2
7 . Write short notes on any two of the following : 7xZ
(a) Bernoulli's equation
(b) Voltaic cell
(c) Mirage
(d) Drift velocity
BET-012 1,000
i r i ' i
. , ' '
i ' . . . . :
Diploma in Civil Engineering / Diplomain Electrical & Mechanical Engineering
Term-End Examination
December, 2006
BET-013 : CHEMISTRY
Time : 2 hours I{aximum Marks : 70
Nole 3
(i)
(ii)
Quesfion no. 1 ii compulsory.
Answer any four quesfions fromto 7.
(iii) AIt questions carry equal merks.
(iu) (Jse of calculator is permitted.
:
Questions no. 2
l. {a)
(bJ
(c)
td)
. (e)
: ( 0(g)
BET-013
What is Law of Octaves ?
Name important zones of atmosphere.
Differentiate between a mineral and an,ore.
What are the different sources of wat er ?
Give four characteristics of a good fuel. ,
What is sliding'friction ?
What are addition polymers ?
2
2
2
2
2
2
2
P.T.O.
2. (a) Discuss in detail about modern periodic table. 10
(b) Write the electronic configuration of the following
3- (a)
(b)
(c)
ExplaintheAmmoniasynthesisbyHaeberprocess.
Mention any four uses of chlorine.; ;
Describe the commercial production of sulphuric acidby Contact process.
4. (a) Explain the functioning of a Blastdiagram.
(b) What is an alloy ? Give two examples.
5. (a) Discuss various methods for removaland permanent hardness of water.
(b) pH of a solution :'is q. Whrat is the' solution,? {pl{,*, * 14}
(c) What is desalination ?
5
fumace with a
pOH of the?
l)
3
6. (a)
(b)
(c)
Give the merits and dernerits of solid and liquid fuels. L0
Enlist four gaseous fuels. '
z
What arethe uses of biogas ? 2
BET.013
7 . (a) What are the two main classes of solid lubricants ?
(b) Distinguish between fire point and flash point.
(c) What is glass ? What arethe functions of borax andalumina used in the manufacture of glass ?
(d) Give the formula and structure of bleaching powder.
3
4
5
2
BET413 1,000
Diploma in Civil Engineering / Diplomain Electrical & Mechanical Engineering
Term-End Examination
December, 2006
' BET-014 : APPLIED MECHANICS
Time i 2 hours Maximum Marks : 70
Nofe ; .Attempt Quest ion p.umber 1. which is
compulsory and any other four ques'tions from
0 . 2 to 0 7. In all, solue fiue questions. , L)se of
calculator is allowed.
l. (a) Fill in the blanks : 7x7=7
(i) The velocity ratio of a simple wheel and axle
with D and d as the diameters of effort wheel'
and load axle is
(ii) Mechanical Advantage of a machine is defined
a s t h e r a t i o o f - - ' a n d
* . -
(iii) Two forces 3 N and 1 N act on a particle. The
resultant when they act at right angles is
; the resultant when theY act at 60'
is
1BET-014 P.T.O.
(iv), ln figur€ 1, force in rigid bar AB,is
Rigidrbar
Figure T
Frictionalr for'ce' il T
o* ,,er'ea" of':, ''r
contact.
Centroid of ellipse lies at - .
The, angle, of; pnojeation for ma m,rur,r,r, ho,uirenfal.
(v)
(vi)'
(viil
IdI;tSg, i$. . , .
(b)' Choose'tre,correct drr$w€r;
. t .
Txf=7(i) An, aeroplEne is flytng: horizontah at a s1ry
u" It drop$: d packpt from, a height h. The tirhstaken by the packet to reach the ground will be
(A) ",ffi
$]
(cJ,
(D) tr{ ,h
&gi
BST;Sil4
(ii) A force of 5 N acls on a body of weight 9.8 N.What is the acceleration produced in *r-2 ?
(A) 49.0
{ts) 50
tc) 1.96
(D) 0'51
(iii) The units of impulse are the same as those of
(A) energy
(B) momentum
(C) power
(D) velocity
tiv) A man in a lift weighs more, when the lift' - ' .(A) begins to group
(B) is going up steadily
(C) is slowing down
(D) is descending freely
(v) A heavy uniform chain lies on a horizontal table
. top. If the coefficient of friction between thechain and the table surface is 0.?,5, then thernaxirnum fraction of the lengfh of the chain'that can hang over one edge ,of the table is
(A) 20o/o
(B) 25o/o
(c) 35%(D) I\a/o
BET-OI4 P.T.O.
(vi) , 'A uniform chain of length L, and mass M is
lying on . a' smooth table and one-third of its
length is hanging vertically down over the edge
of the table. If g,is acceleration due ,to gravity,
the work required to pull the hanging part on
the table is
: (A) MgL
(B) ry\,,; (c) ry
I . ,
(D) MgL\ut . ts
(vii) A particle executes SHM giVen'by
Y : 0'02 sin 100 t.
) ' ' T h e a m p 1 i t u d e a n d f r e q u e n c y a r e' :
(AI 0'QZ and 100 '
l - - r i .
.
' ,A ; 50 ; \(B) 0'02 and *TC
' , , . j . .
(C) 0.01 and 50
,h\ 1 50a ,(Ul - ancl\- ' o.oz
*-': Tc' . , . :
BET-014
2.2. Five forces act on a
Determine the resultant
shown in Figureparticle
force.
AS
1 4
45 kNFigure 2
3. In a differential wheel and axle, having a velocity ratio of' 2:4, a load of 200 N can be lifted by an effort of 15 N and
a load of 250 N can be lifted by an effort of 18 N. Find
effort required to lift a load of g75 N,
effort wasted in friction and
maximum efficiency of the machine. 14
{a)
(b)
(c)
BET-014 P.T.O.
4. A 'body resting on a horizontal plane required a pull of204 N inclined at 40o to the plane, to initiate the motion. "ltwas also found that a push of 250 N inclined at 40o to theplane, just moved the ,body, as shown in'Figure 3.
200 N 250 N
Figure 3
Determine the weight of the body and the coefficient offriction. i.4
5. Find the moment of inertia of the section shown inFigure 4 about horizontal and vertical ax€s through thecentrod. 14
Ji 'o
(AU dimensions are in mm)
Figure 4'
(b){a)
_+l
,L Iil
F-_ 100 ___-il
BET,0:|4
6. A, block of weight 12 N falls at a distance of 0'7 5 m oR
top of the spring as shown in Figure 5. Determine the
spring constant if it is compressed by 150 mm to bring the
weight momentarily to rest. 14
T.
Figure 5
Write short notes oR any f,sur of
(a) Fnergy
(b) tsanking of roads
(c) Impulse and Impulsive force
(d) Projectiles
(€) Law of, Liftlng Machine
S ' L^ami's Theorem
the following : 4fi + =74
j
BiET'O14 1,000
Diploma in Civil Engineering / Diplomain Electrical & Mechanical Engirreering
Term-End Examination :December, 2006
BET-015 : ENGINEERING MATERIALS
Time : 2 hours Maximum Morlcs : 70
l\fote : Question number 1 is compulsory, Attempt any
2 - 8. Alt questions carry geual marks. Explain
your snswer with the hetp of neat and labelled
sketches, whereuer necess ary.
l. Choose the correct alternative : 2x7' (a) Quart zite is a ; i
(i) siliceous rock
(ii) argillaceous rock- ^ ^ t ,
f : t t \ ^ A r r A A triv) aqueous rock
tb) The radial splits which are wider on the outside of the
log and narrower towards the pith are known as: (i) heart shakes
(ii) cup shakes
(iii) star shakes
(iv) rind galls
BET-015 1 P.T,Oi
(c) The frog of the brick
kept on
(i) bo$om face i
(ii) top face
(iii) shorter side
(iv) longer side
in a brick masonry is generally
(d) The main constitueRtr, whidr ,impqrts hydrailtcity.to
hydraulic lime is
(i) calcium oxide
(i0 silica
(iii) clay
(iv) water
Le
(i)
(ii)
(iii)
(iv)
for determining
M 40 grade of
criteria ofl
(i) 4A N/mZ,
(ii) 40 N/cmz
(iii) 40 N/mm2
(iv) 40 kN/m*Z
Sre. , - , , . , " !
(el
(f) i$ judged
BET.ff1 5
b) The property of the ingredients to sepqrate: from
each other while placing the concrete is called .
(i) Segregation
(ii) Compaction
(iii) Shrinkage:
(iv) Bulking: . ; , , r .
2. (a) What is the natural bed of a stone ? Explain its
7significance.
(b) What are the different types of tiles ? Explain their
3. (a) Describe hydration of cement by discussing
behaviour of each of the products of hydration. ' 7
(b) Describe various tests used to assess the suitabilrty of
!. (a) What is compaction of concrete and how does it
influence the strength of concrete ? 7
(b) Explain the different materials used to clad the
intemal walls of any building. 7
'5. (a) Describe the classification of trees depending upont their mode of growth. 7
(b) What do you mean by seasoning of timber ? Explain
, ts8T.01 5
6. (a) Explain the various types of defects which may
develop in painting. 7: . :
(b) Describe in brief the process of painting. 7
7. Write short notes on the following : 48Iz
(a) Constituent of an oil paint
(b) Curing of con crete
(c) Classification of rocks
(d) Decay of timber
8. Differentiate between the following : - 2
(a) Initial setting time and Final setting time of cement;
(b) Dry, rot and Wet rot : ,: .
(c) Umestone and Marble'
(d) Quick lirne and Hydraulic lime
i ) . r i ,
. r _ . r '
BET-015 4 i 1,,000
Diploma in Civil Engineering i Diptomatn Et{Bc'trical & Mechanical Engineering
,;" , ',,. r' .lFofm-End EXafninatien ,,
G \ .Decembet,2OOG. : , . 1 i , . t . ,
BET-016 : ENGINEERING DRAWING
Maxim:u,wl Marks : 70
J\fgfs .;, Part 'A' ,is to be attempted oft Answg,r Scripfs to
and Part 'B' on Drawing Sheet- Use of calculatoris allowed,
. :PART'A '
Attempt any eight questions only. All the questionsearry eqaal marks (5 morks each)., : , ; | . :
l. What do you understand by R.F. (RepresentativeFuaction) ? Differentiate between Reduction Scale and
' . i :
Time : 2 hours
Enbr ment Scale; i'r' l' . j . . . i , , r . i , . 1
, : . . , ' . 1 , t . . . a . , ' . : . , , .
, , , , , . , . ' ,
. . . . . : i : : . " . , .
2. Define Eccentricity. What about its value for Parabola andt ?Hlperbola with cornparison to one ?
3. F-xplain with the help of simple sketches Progressive and
BET-016 .,P.T.O.
4,. ; Fill in'the blanks : ;I ' :
(a) When measurements are desired in thrggr,, units' '
. : . , . , ' . , . , ' ' ' , : . i , - . ' j , * . ' . , ' , , , , ' ,
, : ' : ' , . : . . , , , ' 1 , 1 1 , ' 1 . . 1 . . i . 1 ' . ' - 1 { - . : ' , i
*+".{-*rylscgle is.uSed*,,, i r '1 ' !r , i , , , i
. , i ' , : ,u' , , .n!: : 1,, ;1,, ,;
(b) In ,..r,,, ,',, quadrant, thE, pqint-,'lids in {ront of
V.P. and above, H.P. ;, . " ' I , , , , , ,
! ; ' : i , ; l ' l ' ' , r , , . , i ; '
(c) A straight line is defined as the distance
between two points., , , ' . ;
' . ' ' ' . " , t .
' ' ' " r ' : ' ' ' ' - ' l '
, l ' ' t . : i '
' t ' : '
(d) The planes which are inclined to both the referenie' r'' : planes''arg called
(e) All dimensions' in an isometric
foreshortened by .
5. Explain the method for the lst Angle
Projections with the help of sketches.
(a) Point 'A' its Top-view'X * Y' line and Front-view
, ,,,,.,,, 1K'*Yi,;tlne", :.
(b) Point 'Bo its projections
:, ,, :; coincide with ,gach oJher
' ' t , , t , ' t i .
' . ' i . ' l i , , . ' ' "
, f .
BFT-o1S
7 . Define ,,TRACE" of a line. As per given Figgre L, find out
pmition of Relative Trace. : :' j
i j
Figure 1
What are the different positions which a plane can take
wi*r lWpect tO the telerence planes H.P. and V'P' ? '' r '. v
How can we develop the lateral surface of a square prism,
having base edge 30 mm and side edge 55 mm long ?
lo. Define Isometric scale and how it is constructed.
8.
9.
BET-016 3 . P,T.O.
"t
l l . Figure i 'i2 ''shluws r the ', Plan i ard ,,- Elevation; i,6f *6 i Soue*ri iPyramid cut by a section Blane :,,[l,T:,;,;.r$how;;,iib*-Sectional-plan.
I
4,''Bgr-01,6
, i f ' I
A ttempt any two questions. Each
:i, morks (15 morks only). ,, ,,..,,i
R.F. *
14. A line
to V.P.
and 40
sEf.dro
16. Draw the following
Figure 3 :
(i) Top View (Plan)
BET4T6
(ii) Front View (Elevation)
(iii) Side View
I'
Diploma in Civil Engineeri$S / Diplonrain Electrical & Mechanical Engineering
: ncce$rber, 2006
BET- O17 : COMPUTER BASICS
Tirne : 2 hours Maximum Mst'ks : 70
tofe :(i) Questlon no. 7 is campulsorqY
fti) Attempt any four questions aut of the remaining
questions numbered 2 to 6.
l. (a) State True or False. 7x7=7
(i) Scroll bars are used to move through a
document or a list when the entire document or" . ] . : , l i s t . d o " , n o t f i t i n t h e w i n d o w .
(ii) MailMerge is a feature of MS-tA/ord'
(iii) Password can help to make the file read only
for external users.' , : ; '
(iv) A template is a presentation cgntaining
i ': (v} Using View Menu, Command Tree qnd: Directory displays only the directory tree-
tsET-ol7 F.T.O.
.(vi) In Fxcel, to select entire column one has to pressCtrl + Spacebar using keyboard.
Title Bar displays what you are doing 'in
a'(ut) ;'
PowerPoint presentation. .
(b) Fill in the blanks from the choices given below ) 4xl=T(i) The toolbox contains tool Airbrush, for drawing
which creates __ spray of dots.
(ii) Two types of ,,programq that 'rftry pC ,"quiru,lre operating system programs and
(iii) A cell is thebuilding block
(iv) cTRL+c " is '
: ; , ' : t t : :
command.
Jv) The PowerPoint is used to create,__.*-
(vi) In M$Word, you can search a document forspecific characters, formats, or style using the
comrnand. I
' 1 :'(uii) Within
windows to display' . 1
directory at a tirne.
. t I
' I ? l . . :
(c) Application, .;
(g) Cut (h) Hndrand
Choices ;
,., h,l, Fil" Marlager (b) Worksheet(d) Circular (e) Square (f) Copy: .Replace (tl Search
the
' "' " ' -' '
the short' I
I smallest particle andin the
l<ey for. :",
onei
more
BETTO:I 71 l
. . . ' $ , '
2. Attempt any !*o
of the following :
(i) List, the various parts of the MS-Word screen.
(ii) How will you open and close a document in
MS-Word ? Also explain cut and paste operation in' .:
,,. : .tiii) Explain'in detail, MailMerge operation in MS-Word
3. Attempt any oneof the following : 14
(i) tAlhat is PowerPoint ? Explain how' you will makeyCIur presentation attractive.
(ii) Answer the following questions
(a) How do you change the font colour and style in
PowerPoint ?
. (b) What is the use of animation in PowerPoint ?
(c) How will you insert slides and charts in
PowerPoint ?
4. Attempt any two of the following : 7+7=74
(i) Explain basic elements of MS Windoud Desktop.
(ii) What is a screen saver ? Write the steps to define a
screen saver.
(i$' Explain how the Paint program is used for creating,freehand drawings. List any five tools available in
Paint.
Bf;TrqtT 3 P:TrO.
t
5. Attempt any fwo of the following :' " ' ' /a/*1,4
(i) Explain the u$age of IF(. } function of MS,'Excel $dthexample.
(ii) What are the steps involved in copying a wsrltsheetto a new worksheet ?
(iii) What is the difference between absolute and relative
MS excet ? :
6. Attempt any twoof the following : 7+7*llfr
(i) List the steps followed for finding a documqnt incomputer by searching. ,
{il} Vrlrite steps inwlved in creation of a 'table havingfour rows and five columns. Also explain how acolumn can be rernorysd frorn a tabh.
(iii) List the various parts of MS Excel screen.
" l , .tC,..
BET-01 7 tisffi
Diplorna in Civil Engineering / Diploma
in Electrlcal & Mechanical Engineering: .
Term-End Examinatiox
December, 2gA6 ,.
BET-A?J : MATHEMATIC${I
Time : 2 hours Maximum Marks : 70
Note' : Quesfion no. l is compulsory. Attempt any fourquestions out of the remaining quesf ions
numbered 2 to 7. LJse of calculator is permitted.
I (A) ff::l,,:: ,:::::i;:ffi"n:.J:
four n*T*1=7
dv(i) If y - sin (*2), then
;i is
(a) cos (*2)
(b) 2x sin (*2)
(d) Zxcos (*2) , '
BET-021 P.T.O.
, , I r , d Y '(ii) If Y = log (tan x) the'n
d- is
I ( a ) Z s e c h x : ' ;
(b) 2 cosec 2x
(c) 2 sec3 x
(d) 2 cose.3 *
i - l
: , * 2 : 1 6
i ' i ;
(iii) Lim is! - - - r i_4 X_4
(a) 4
( i v ) I f x + i y = J Z + 3 i : t h e n # * Y i $
(a) 7
(b) 5
{c) 13 I
( d ) J z + 3
8€T-021
{v} To multiply a matrlx by scalar K, multiply
(a) any row by K
(b) every element by K
(c) any column by K
(d) None of the above,
BET-021 3
[s 41 l-r - 21( v i ) I f I l X = l l , t h e n x e q u a l s
L1 lJ L1 3J
(a) L-; -];]
(b) [:
-:]
L-; : lL; :;]
P.T.O.
(vii) Th,," Standard , Deviation (SD) is defined as
(a)
n , :
t f{x. -x)I - / ' l 'i - 1
(b) r- I
* rkti = 1
i f(x, - x)2L l ' l
i = 1(c)
D
I f {x i ;*}2i = 1
I ri = 1
n
t rl-/i = 1
(d)
BET-CIz1 4 :
r i , , i , . , , , i , ' , 7X t=7 , i : ; r(B) Fill in the blank : ' , '
6( i )
I " | z d x i s .
r j
(ii) Imaginary part of #,
is . , ,'.
i i " ' ' : , . '
s ' i : , . !
(iii) The volume V of a right, cylindir'of ,uJi,.,, r and
height h is given by
V = n , h : . , ; , : r
m r d v . . ,Then
* is , the
' ;
M ' Aveiagn' uaiUe rnay be 'terrned' as
' a ''measure
of": ' a ' ,
: r . , . f , , , ' , i , . , 1 i , , , : . ' " . , '
. " ' , . , . . ,
I r , r '
' ' t ' : t l ' ' t '
(vi0 The mode for the following data
2 .5 , 2 .3 , 2 .2 , 2 .2 , 2 .4 , 2 .7 , '2 '7 , 2 '5 , 2 '3 , r r2 '? ,
2'6, and 2'2 is : .
BETJOzT
2. (a)
(a) Evaluate
(b) Evaluate
5. (a) Prove that
i 1 1 1 ll " b c l =Il"' bz ,'l
height h and radius'r is *) J
t
I
x =t 2..
(b)
A function f(x) is defined as follows
[ x x < 1I
f ( x ) : 1 2 _ "
1 < x < z'
' x > 2L - z + 3 x - x
Discuss its continuity at x = I and
Evaluate lim f1l4'l0 - + 0 \ 0 )
t ,in lze .,. +'] do\ 3 ):
3 J
J {Q.*i dx0
2x7*'il,4
2x7=1.4
2x7=74
3.
4. (a) Find the local maximum and local minimum value ofthe function
f(x) : *3 9x2 + 15x + 11
(b) Show that the height of a right circular cylinder ofmaximum volume inscribed in a right circular cone of
BET-021
(b) Find the adjoint of
[ t o r lA : L : : : ]
7 . ta) Find the value of p, if the
distribution is 7 .5.
2x7:74
express the
trigonometrical
2x7=74
mean of the following
1,000
(a) Express the following in the forrn a + ib where a and
b are real numbers :. ( 3 + 4 i ) ( 2 + i )
1 + i '
rtb) Sirnplify I cos
Lresult in a
a
expresslonS.
2n . . 2n11la
T+is inT l and
form firee from
(b) The mean weight of 150 students in a certain
class is 60 kg. The mean weight of boys in the class
is 70 kg and that of girls is 55 kg. Find the number
f boys and the number of girls in the class. 2x7:74
x 3 5 7 9 1 1 13
f 6 8 : 1 5 p I 4
BET-021
r. i"
' .Diploma in Civil Engineering / Diplornain Electrical & Mechanical Engineerirq
Term-End Examination l,'
December, 2006
BET-022: STRENGTH OF MATERIALS
Time t 2 hours Maximum Marks : 70
r Quest ion no. 1 is com pulsory, Attempt any fout' questions from the remaining. Assume sui table
data whereuer necess ary and mention it clearly.Use of calculator is allowed.
. ; t . r . .
l. Clioose the correct answer from the given akernatives :
)
(a) *2 (L+ p )
. . . ; .(b) m:T
, 2 E(c) 11*,r ;
(d) :F_v ' ( 1 - p )
where P =: Poisson's ratio,
BET-022 1
7x2=74
maximum shear (T*-.) ori an inclined plane is, r ' . : , ' t : ; ' ' 1
t
: . ' , ! '
, i i o , . - , ' , t u l , # , o 2 } ' ' i l ' i ' . , ; ; ; " - o ' ' ' l ' i ; ' 1 r. . ( a ) t r . ' ' ' . ) ' ' ' . : , . ' ' : ' l .
:
( b ) 9 i ' ' | : : ' l ;
z.
' : ' l . ' , , ; . , . . . , " , ,
, t ; ' l ; ; j ' . ' ' ' i ' , , ' ' ' . , ' ' . , ,
{c) (ol + ozl
t(d ) z { c : - - oz l
where trl and 62 are principal stresses at a point in d
a strained body.', , . , ' . ' . r
. ... ..:... . -'t""' " {iiiit'"tfii "'beotirrg'' n no#*nt at'th"' centie' of ' a sirnply I
-'
ilJppqrfsd ,befrrn ,$f length I Carrytru a',gnif ly i, ' " . $
' distributed load of dunit length is
(a) wl
(b) *
, r w l Ltc,
4
(d) +.
BET*O3Z "
| 2
(iv1.".' -In*Le section modulus of a rectangular section' having
(c, $
(d) *
(v) A simply supported beam of span (l) is carrying a, point load (W) at its centre. The deflection of beam
at its centre is
'
, wlz . . , '" '(b)
;_^
w13(d)48 EI
(a) ?
(b) *o
BET-02? P.T.O.
(vi)
- (b)
(c)
X . T X
x T ;x d3
x t x c t z
(d T- x r xd3r ' 3 2
A column of length (l) is hinged at
equivalent length will be equal to
( a ) 4 t ,
{b) r
(c) 0'5 I
(d) 0.747 I
',Tt
G
TT
32
(vii)
-;.
'
its both endb.
, \ j2. (a) Define
(i) Umit of ploportionality
(ii) Ultimate stress
(iii) Permissible stress
(iv) Poisson's ratio
BET*022
4i ,N1. . { 1
I
4,
(b) A steel bar ABCD, 4 m long
os: shown in Figure oo, 2(b).
the bar. Take E for steel as
is subjected to, forces
Find the,elongation of
200 GPa. 1 A
pr m 2 m 1 * ' {
Figure 2(b)
3. (a)
4. , (a}
t .
:
BET-02'2
Write various assumptions rnade in
bending.
theory of
is simply
carries a
over the
the beam,
The depth
(b) A timber beam of rectangular section
supported over a span of 5 m, it
, uniformly distributed load of 15 kN/m
entire. spqn. Find the ,width and depth of
if bending stress is limited to 8 N/m*2.
to width ratio may be taken as 1'5.
Define the terms (i) Shear Force, (ii) Bending
Moment with respect to a loaded beam.
1 0
5 lN | 10 kl.l20mm0 1 0 m m $
P.T.O.
A cantilever beam carries a uniformly distributed loadot .2kN/ rnov€r theent i re " lengtho f6rnand,po i r ' I t
loads of 5 kN, 3 kN, T kN bnd 2 kN at a distanceof 2 m, 4 m, 5 rn and 6 m from the fixed end as ,;shown in Figure 4(b). .Draw Shear Force and BendingMoment of the loaded beam. L0
5 t(}.I 3 td{ 7 kht zlo\I
l * 2m 2m -+f<*1 m*f*l *+f
5- A sirnply supportad beam of span- 4 m is carnTing a. uniforrnly distributed load of Z kN/m over i_ts entiry,, span.
Find the maximum slope and deflection of the beam. Take
14
6- A solid shaft, made of steel and of 2 m length, is to transmit
50 kW at 150 rpm. If the shear stress in the shaft materialsis not to exc eed 50 MPa and maximum allowable twtst in
: theshaf t is1o,calcu latethe 'shaf td iarneter .
Take modulus of rigidity (G) as B0 Gpa, 14
: ' ' '
: : , r . "
7. (a) Define and explain (i) Equivalent length,
(ii) slenderness ratio in case of a column. 4
7 kht
BET-022 $ ,
(b) Calculate the safe compressive load on a hollow castiron column with one end hinged and the otherrigidly fixed. The external and internal diarnetersare I2A mm and 90 mm respectively and length ofcolumn is 9 m. Take factors of safety as 3 andYoung's modulus for material of column (E) =-95 GPa. Also calculate the safe critical axial stress.
Define principal stresses and principal planes andexplain their uses.
Evaluate the principal stresses and principal planesfor the state of stress shown in Figure r1o. S(b) . 70
20 N/mmz
?6 Nlmmz
60 N/mmz
60,N/rnm2
26 N/mmzB
26 N/mmz
,Fisure 8(b)
1 0
20 N/mmz
BEr"Se2 1,000
Diploma in Civil Engineering i Diplomain Electrical & Mechanical Engineering
Term-End Examination
December, ZOOG
BET-023 : ELEMENTS OF SURVEY
Time : 2 hours Maximum Morks : 70
Note : Quesf ion no. i is compulsory. Attempt any fourquestions from the remqining. All questions carry
' ' l l " q ' " l T
l ' Select the most appropriate answer for each of thefollowing multiple choice objective type questions : 7xZ:I4
(l) Geodetie surveying is different from plane surveyingbecause of
(a) undurations of the topography
(b) coverage of very large area
(c) the curvature of the earth
td) the large , differ ence of elevations betweenvarious points
BET-023 P.T.O.
(ii) The distance between two cities is represented by
3 c m o n a m a p . I f t h e R . F . o f t h e m a p i s
I distance of the two cities on ground.uurr'm, the distance ot
is
(a) 30 km
(b) 50 km
(c) 15 km
(d) 150 km
(iii) 'Ranging' is the Process of
(a) fixing ranging rods on the extremities of the :
area, \ " '
(b) aligning the chain in a straight line between two
extremities: r .
( c ) t a k i n g o f f s e t s f r o m a c h a i n l i n e
(d) changing over a range of mountains
(iv) If the fore bearing of a line is 0o (zero degree), its
back bearing is
(a) oo
(b) 180"
(c) 360"
(d) 270"
BET-023
If the staff is not held vertical at a levelling station,
the reduced level calculated from the observation
would be
(a) true R.L.
(b) more than true R,L.
(c) less than true R.L.
(d) None of the above
Which of the following methods of plane tabie
surveying is used to locate the position of an
inaccessible point ?
(a) Radiation
(b) Intersection
(c) Traversing
(d) Resection
{vii} Theodolite is an instrument used for
(b) measurement of horizontal angles only
(c) measurement of vertical angles only
(d) measurement of horizontal and vertical angles
2. (a) Define'offset'. Describe in brief two manual
methods of obtaining perpendicular offsets.
(b) A survey line AB was measured by a chain of 30 m
: : length and was found to be 2640 m. The :solrl€ line
AB when measured by a 20 m chain, the length was
recorded as 2650 m. While calibrating, the 30 m
' ( v )
(vi)
7
P.T.O,.BET-023
error in 20 m chain ?
3. (a) Differentiate between the following :
(i) True bearing and Magnetic bearing
(ii) Magnetic declination and Magnetic dip
(b) Convert the following whole circle bearings to
reduced bearings :
(i) '2g" 39' :
(ii) 279" 27', t
4. It was required to ascertain elevations of A and B" A line of
levels was taken from A to B and then contiruled to a
benchmark of elevation 83'500 m. The observations are
recorded below. Obtain the R.L.'s of A and B. 14
B.S. I .S . F.S. R.L. Remarks
r -622 A
r .874 0.354
2.032 1 '780
2.362 B
0'984 L.T22
1 .906 2.824
2.036 83'500 B.M.
5. What is three-point problem ? How is it solved by tracing
paper rnethod ? 14, 9
6. Describe , in detail the temporary adjustrnents of a
theodolite. 14
BET-023
7 . Write short notes on any two of the following 2x7:1"4
(a) Advantages and disadvantages of plane table
surveying
(b) Reciprocal levelling
(c) Difference between Prismatic compass and Surveyor
compass
BET-023 1,000
Diploma,in Civil Engineering / Diplomain Electrical & Mechanical Engineering
T€rrn-End Examination
December, 20g6
BET- 0,24 :' EIM ENGINEERING
Time : 2 hor4p Maximum Marks : 70
ffofe t AII questions are compulsory. Use of , calculator
is permitted.
l. {a) Select the correct' answer from ' the given four
alternatives for the following rnultiple choice objective
type questions ; 7x7:7I
. . i . 1 , ,
' ' (a) Boring holes in roiks
' ' t " '
(b) Transporting heary loads'
(d) ComPacting earth{ills
BET-024 P.T;O.
(iii)
The current in the aim CD of .th'e circuit.will bet '
: C . . I ' , , ' D '
F igure7 : : : , . , ' ' n , , - , , - . :. n ,
( a ) i . + i - rr - r - 1
(b) i, + i,
( c ) i r * i s tI
f c i l i - i - r - i\ - r . '1 .2 t 13
re conneCiea to
form a triangle. The resistanee betu.reen any
two terminals is ',.; ",!,
( a ) 1 2 a l
(b) 6gr
R( c ) ; C t
J
(d) 2a
BET-024
Il
(iv) The filament of an electric lamp draws g current
,of 0.4 amperes, which lights for 3 hoqrs. The
amount of charge that flows through the circuit
ts
(b) 4'g2* 103 Coulomb
(c) 72.0 Coulomb
(d) 4'gZ x 106 Coulomb
(v) The resistance of a piece of wire is 15 O- n is
redrawn by pulling it until its length is doubled. '
,: ' ' ' The naw: resistance of the wire is
(a) t6 Cr\--
"tb) 32 cr(c) 64 a(d) 8o
. t '
(a) generator
(b) voltmeter.:
(c) ammeter
(d) galvanometer.
.
conservation of
(a) charge
:0, b), mass, ^ \ - - r - . -
,,;, (c) mofft€nfum , . r,
(d) energy
BET-024 3 P"T.O.
(b) Fill in the blanks ; ,, :
,: (i), , A,5'0 pF'capacitor is charged from a LZ V,, batterg, and is then discharged through a
0'50 Ma resistor. The initial charge on the r
capaci tor is , . ,, r i : ' i
(ii) The force between hpo point charges, each of
, 1.0 x 10-9 C, which are 0:04 * upu* in a! |
i ' t i
. '
' ' ' ' , . :
?vacuum is
i (iii) The simultaneous control of ternperature,( 'humidity, ,motion and purity of the atmosphere ,, ' i ' : , , i n a con f i ned spac€ . i s ea l l ed . ; t _ _ .
(iv) You are given three resistofr of resistance' -
22 g), 47 Sl, and 100, f,I. The maximumpossible resistance that cnn' 'be obbrned by
.;combining any or all sf,,,, these resistors isT ' ' - ,
, , { v } . . . , A t e l e v i g i o n - ' s e t i s r a t e d a t 2 8 a \ A 1 " r r , e c o s t o f . .watching a three-hour film given that 1 kilowatthour of electrical ene{gy
''costs Rs. 3.00 is ,
- - 1: ; : : " , '
(vi) In a four-stroke cycle engine, the four. s t
operations namef y , suctiqnn r, cornpression ,
expansion and exhaust are completed in ,,the
r . .
(vii) out of all the refrigeration systems, the
- system is the most importantsystem from the standpoint of commercial and : :.domestic utility. : :
BET.O24 4 1
2. Answer anY ftoo of the following :
A copper wire has a diameter'of 0'5 mrn and a
resistivity of 1.6 x' 10-6 ohm cm. How much of
this wire would be required to make' a 10 ohm
coil ?. '
Determine the equivalent resistance 1f
the netwlrk
shown in Figure 2, behr,reen points A and B' Also
calculate the current through each resistor'
5 C }
2x7*74
(a)
(b)
(c)
1 2 V
Figure Z
A hreater coil connected to a 220 V
resistance of 150 () How long will it :u*'coil
to heat 1 kg of water {rorn 20o c to
assuming that all heat is taken up by water
1 cal : 4'2 J.
has a
for this
60" c,
? Given
BET-024P.T.O.
3. ' Answer any two of the followi'g : '2x,/*74'
(a) What are magnetic field lines ? How is the direction'of a magnetic field at a point determined ? Mentiontwo i.pottant'properties of the magnetic field ,lines.
(b) A 100 watt electric bulb is lighted for Zhours daily,and four 40 watt burbs are righted for 4 hourseveryday. calculate the energy consurned (in kwh) in30 days.
r -
(c) Three capacitors of capacity z0 pF, 30 pF, and60 pF are placed in series across a g00 v sou rce. ,Determine
Equivalent capacitance o{ the combination
Charge on each capacitor
Voltage drop across each capacitor
Total stored energy
4. Answer any ,twe gf the following : 2x7*1"4
(a) Find the inductance of an inductor which draws acurrent of r'z A when connected to zs} v, s0 Hz,what current wiil it draw if the suppry vortage ischanged to 200 V, ZS Hz ?
(b) A DC shunt generator has an induced voltage of: 130 v on open circuit. when the machine is roaded
'
the terminal voltage is 725 volts. The field resistanceis 20 ohms and the armafure resistance is 0.0g fJ.Determine the load current.
(i)
(ii)
(fii;
(iv)
B'El -024
(c) A closed vessel contains 2'5 kg of N2 at 30" C
temperature and L20 kPa pressure (absolute), Heat
is suppliAd to the vessel till gas acquires a pressure of
2,4A kPa (absolute). Determine
(i) final temperature of gas
(ii) heat added, and
(iii) change in internal energY.
Take Cu = 0'7 45 kJ/kS K
5. Answer any two of the following : 2x7=74
(a) Explain briefly the simple vapour compression
refrigeration system.
(b) ffLl ,rn"
followins terms as applied to I.c.
Bore, Stroke, T.D.C., B.D.C., Clearance volume,
Swept volume, and Compression ratio
'(c) Give the constituents of a derrick crane and explain
its working.
BEF024 1,000
Diploma in Civil Engineering / Diplomain Electrical & Mechanical Englneering
Term-End Examination
December, 2006
BET- A26: WORKSHOP TECHNOLOGY
Time : 2 hours Max,imum Msrks : 70
IrJole , Qu estion no. 1 is cottrPulsory. Attempt any six
questions from Part A and two questions from
Part B.t l l | | t r l
- -
l. Attempt any seuen questions (2 marks each). Choose the
correct answer from amongst those given below : 2x7:1'4:
(a) It is used for checking the squareness of worhpiece.
(i) Marking Gauge
(ii) Trammel
(iii) Try-Square
(iv) Calliper
tb) As per colour coding for pattern, red-colour is used
for
. (i) surface to be left unmachined
(ii) seats for loose pieces
(iii) surface to be machined
(iv) parting surface
P.T.O.BET-026
(c) During moulding process, it is used directly next tothe surface of pattern.
(i) Facing sand' , " i : , i , . , , .
(ii) Parting sand
(iii) Green'lsand'' : ' i
(iv) Loam sand "t, " r ' : i' "', t ';
( d } A . . # , i s u s e d i n f i t t i n g s h o F . ; f o r " c u t t i n g
external thread
(i) Die
: { i i ) Tap ' : i i . , j , , . , ,
' (iii)' Chisel :
;. :.
( e )Fo rs t ree t rne t i lwo rk , s take i suseda1a\ , j :
rg tool l
tt, holding"anl
I r '( l ] . ( i i } s t r i k i n g t o o l ' . : ' ' . . . ' . . ] ' , ] ]
(iii) cutting topl ' jn ' ,
. , i ' : '
: . . , , , . . t , . , ; . ' . r l
( i v ) m a r k i n g t o o l i ' r , ) ' . ; . '
{f} The oxy-acetylene gas ur*a in gas uelding pr€duc€s ,,,:"
j j , . ; E , f l a m e t e r n p e r ? q w e , 9 f . . . | . ' . ' . ' ] u . ' . - ' ,;
(i) 1800" c(
( i i l 2 1 0 0 . c , l ' : . . . . . i , , | . \ : , ' i ' . ' : :. t :
(i i i) 2400"c : :,. 4 , ' ' ' . ' ; ' , , . . ' . . . . . . , . , i . . . i : ' , ' ]
( i v ) 3 2 0 0 ' C . . - , : : ' ; , . . . ' . ' ' , . , ' . , , | i ,
BET.-026
(g) Shape of the Pritchel Hole which is carried on the
back part of the Anvil is
(i) square
(ii) triangular
(iii) ' circular
(iv) rectangular
(ht This operation involves on lathe-machine,,to cut the '
work metal into two parts.
a(i) Parting off , i
(ii) Facing
(iii) ins
(iv) Grooving
(il, For the preparation of oil-paint, white lead is used,,,ut ;
a
(i) Vehicle
( i i ) Drier ' : : : ' "
i (iii) Base
;,.,,\ {iv) Solvent , ,
(j) Hard solder is basically an alloy of ,:
(i) Lead + Tin.(ii) Cu + Lead
:tiv) Zn + Lead
BET-026 P.T.O,
' , , .
Attempt any six guesfioFls. AI'
equal marks (0 marks each).
2. Give a list of marking and measuring tools used in
carpentry work and describe the use of any: tll.lo of them
with sketches.
3. Differentiate between'lDieingll
in detail.
Why are stakes used
types of stakes used.
4. in sheet metal work ? Name various
Describe any one with sketch. i';',
5. 'Describe with the help of neat sketch, the principles of
spot welding and seam welding.
' ,6. Name at least six numbers of Smithy
state their uses.
BET-026
1 . .
7 .
8.
9.
Give a list of all heat-treatrnent proc€ss€sr r Whati:iis th€,purpose of "Hardening" and how is it done, ,?, , , : 1i,;; :;.
Describe the function of a lathe machine. 'What ';ia qhg
main parts of a lathe machine ?. 1 , '
I , , . :
What are the common allowances provided',on pattem'aad
why ?
PART B
Attempt any two questions. All the questions carry
equal marks (10 marks each). 70x2:24
lO. What are the characteristics of a good paint ? Make a list
of main constituents of an oil-paint.
I l. What is moulding ? Give a list of different tools and
equipments used in Foundry work. Explain any two with
sketches.
12. Give a list for dif terent types of taper turning operations on
lathe machine. Define cutting speed, feed and depth of cut
during cutting operation on lathe machine.
13. What is a lile ? Name the various commonly used files in
Fitting shop. Ho* are the files classifi ed ?
BET-026 1,000
i r l r
Diploma in Civil Engineering' /,'Diploma, ln Electrical & Mechanical Engineering
T"T--End Examination I
December, 2006
BET-037 : FLUID MECHANICS
T i m e : Z h o u r s , , , ,
Note : Att questions are compulsory. l.Jse of calculator
is permitted,
l. Select the correct alternative. :
74x7=74
(i) A strong wind blows over a house. The force due to
wind on the roof is mainly
(a) in the downward direction : "'i
(b) in the upward direction :
(c) in the horizontal direction I :
(d) zero' ' a '
(ii) Which one of the following would,.,g , hydrogen
balloon find easier to lift ?
(a) 1 kg of steel i '
- a(c) 1 kg of water
(d) All the same
BET-037
(a) Pressure of air increases with the increase of
i ' (b)
' ' PreCsure "of dir 'decrensei: udfh
''th€' lncre$& of
a l t i ' t t d e , , , | : : : : , | . ) : , l , , . . . . ' : , . . j ' l
(c) Pressure o.f air will not change with altitLdg(d) None of the above
A conieal 'vesseN sf , vertical ,height h ,filled
liquid of density p rests on its base. If gacceleration due to graviB, the pressure. aton the base is
13
1T,
(d) hpg
(v) An incompressible fluid flouls steadily ttnough acylindrical pipe which has :radius '2R' at a,point Aand radius 'R' at a point B,further alsng the f,lowdirection. If tlre wlocity at point A is' 'v', fts u*lociBat polnt B will be
(a) 2v
rL\ Vt u , z :
(c) v '. '
(d) 4v
(iv) with a,is the
a, point, ' i
(.) ' t
BET$37
(vi) Wi,th increase of ternperature, the viscosity of liquids'
and gases''
(a) increases for both
(b) decreases for both
l ' (g } ' : . inereases . fo r l iqu idanddecrea ies forgases
(d) decreases for liquids and increases for gases
(viil Bemoulli's equation is irnportant in, the field of:
(a) electrical circuits
(b) magnetism
(c) photoelectric effect ,;
(d) flow of fluids, l
(viii) A cylinder is filled with non-viscous liquid of density
p to a height h0 and a hole is made at a height h
from the bottom of the cylinder. The velocity of liquid
issuing out of the hole is
.ffi(a)
(b)
{c)
td)
.,Fr
'F;
Zsho - h)
BET-037 f ! - r nJ . | . \ . r 7 .
(rx) ,, ,The hydraulic gradient line is. l(a) sometimes above the energy gradient lipe , ,(b) always above the energy gradient line(c) velocity-head units below the energy gradient
line
(d) velocity-fread units above th€ energy gradientline
' , t t . . . ' , . , . ' : " , , ' ' : .
: , : . , , . , I L ' i l
l(x) In parallel pipe system,
(a) the ;piPes must be placed geometrically ;parallel
t o g a c h o t h g r , , , , : , , , , i . - : , ,
(b) the flow must be the same in all pipes
(c) the head loss across each of the'parallel pipesmust be the same
(d) None of the above
(xi) The, unit of power is' '
(a)' ioule ' i ' 1, , , , '
(c) watt
(d) henry
{xii} For maximum transmission of power. thSbugh prpe"'
for given H,
(a ) h f =H
r r(b) hf != 0'50 H1
( c ) h r = ; H
(d) None of the above
i '
BEt O37 4
(xiii) A Newtonian fluid is that
(a) whhh follows Newton's laws of motion
, (b)
#ilffdt a minirnum shear before it, $tarts
'(c) for which shear and deformation are related as
T: U*, where p is a constantoy
(d) , .t{one of the above:
(xiv) Relation between Co, C. and Cu is
(a) Cd : Cr/C,:
(b) Cd = Cr/C, , ', i
(c) Cd : C. Cu
(d) None qf the above':] ' ,
2. Answer any two of the following : T+7
(d n flat plate 0.1 ^2 urna is pulled at 0.30 *r-1 relativeto another plate located at a distance of 0.0L crnfrom it, the fluid
;separating them being ,wdt€r with ,
p : 0'001 Ns,/mz. Find the force to maintain the. , , , . " . , , . , , . :
' :
'
t . .
(b) .A rectqqgular box with,base 2 m x 3 m containsgasoline (specific gravity 0.Tl upto a height of' S m.Calculate the force on the base and on each of the
BET-037
vertical faces.
P.T.O.
(c) Oil flows through a pipe of :50 crii'dfameter at poirrt' .
A to 40i cm' diameter at point B,'At,pornt B, it.
bifurcates, ,into t*g,branctres cqrwi$ting ef, prpgs of
25 cm and 20 cm diameters as sho,Um,.in,iFig,ure 1.
If the velocity at A is 2'5 ms-l, calculate the discharge
at' A' artd t tha "uelocities at' j'B. arid'' C.'The velocity at
D i s 4 . 5 m $ . 1 1 . , , . i , , . i r , : , , , . . : . r , .
,20 cmc Dia
. . , i . ' . ' l , 1 . .
A5O cmDia
' , l l l t . ' i : " : : j : ' t i i : . : i . . , l l l ' i i : ' . ' : :
(a) A pipe carrying water
diameter of 50 cm to
. . . . ' , , 1 . - i . .
the wolking
BET-037'
4.
(c) Explain each,with one example : : '
(i) steady and uniform flow: ;
(iii) steady and rapidly varied flow.
(iv) unsteady and non-uniform flow, " - ' , | , . ' , t ' l
. 'Answer any two of the following :
(a) List the differences belwe€n ,laminar flow and
turbulent flow and explain the ,igtifirance of Reynolds
number.
Two reservoirs are connected by two pipes of the
same length laid in parallel. The diarneters of the pipe
are 20 cm and 55 cm respectively. If the discharge
through 20 cm diameter pipe is 0'012 cum€s, what
will be the discharge through 55 cm pipe 7
Assume that f is the same for both pipes.
Find the loss of head due to friction in a pipe carrying
water. The pipe is 400 m long and 20 cm in
diameter. The discharge through the pipe is 0'08
c u m e c s . T a k e f : 0 ' 0 4 .
Ansr,ver any ,f,uro of the following
ta) Derive Darcy - Weisbach equation
significance.
7+7
7+7
and explain its
(b)
tc)
$.
, BET*037 'P.T;:O.
(b) An open channel has trapezoidal section with a basewidth of 2.s m and side slopes of.,l, : 1. If the depthis 1'60, determine the required slope for a dischargeo f O m 3 h . T a k e N = 0 . 0 1 5 .
(c) Write short notes on (any two):
(i) Intemal Mouthpiece
(ii) Bell-Mouthed Orifice
(iii) Venturimeter i
(iv) Continuity Equationt
{v) Stream tine
i , t '
tsETj037 J i r I r . :r' 1,000
Diploma in Electrical and MechanicalEngineering
Term-End Examination-
t l , l / ^ , 2December, 2AA6
BET-03S: ESTIMATING AND OUANTIWSURVEYING
Tirnte: 2 hours Maximum Mcrlcs: 70
ffofe : Att guestions of sectio n A are compulsory.
Attempt any two questions from Section B and
any two questions from Section C.
Attempt both the questions.
I o State True or False for the statements given below : If
(a) An MCts is an electromechanical device.
tI
(b) The minimum slrze of copper conductor is ffi
mm
for any sub chcuit having a maximum load ofI
1800 watts or 2O electrical load points.
For power socket wiring (15 Amps), the minirnum- 2 r 2
size of aluminium conductor must be 10 rnmo.
BEr-038 P.T.o.
BET-038 z
SECTION B
Atteimpt any two questions onlY.
\ 'S, (a) Mention the factors based on which water supply
pipes are chosen for a water supply scheme. What is
(b) Briefly explain 'Trenching', 'Laying of Pipes' and'Back-Fill of Trench' in the context of a water supply
scheme.
4. (a)
,, (b)
What are the components of an overhead
distribution network in an external electrification
scheme ?
An extern al electrification scheme has to be planned
for feeding a load of 30 kW. The specifications are
Length of line - 750 mtrs
Supply - 4L5 V /240 V, 0'8 p.f. lagging
3-phase 4-wire vertical configuration system,' ' span between 2 poles is 50 mtrs.
Calculate the following :
Number of poles required (rcC, 8 m long).
Current in the circuit carried by the overhead
lines.
(0
(ii)
BET-038 't 'F,T.O.
. a .
(iv) Number of m shackle insulators required to
support the overhead lines on the PCC poles-
(v) Draw a line plan of the proposed s.!"*-".-7+7+7+2+2:7
5. (a) A project site office room has two light points , one
fan point and one 5 A socket outlet on the su,ritch
board. The plan view of ihe room is as given :
PIAN VIHAT OF STTE OFFICE ROOM
t '
Draw onty the 'wiring diagram' having the following
details :
{i}' Phase, Neutral and Earth coRnectors to the
electrical loads including 5 A socket outlet.
T nf *ha Rrfitrh Fl,narrl(ii) Wiring of the Switch Board.
BET{38
Explain the 'term 'Coefficient of Utilisation' or'Utilisation Factor'. Calculate the number of llllflN
tube light fittings required in a large hall of
30 mtr x 10 mtr given the following :
(il Required illurnination in lux i 250 lux
(ii) Wattage of each tube light - 40 watts
(iii) Lumen output of each tube light - 240Q
(iv) Coefficient of utilisation - 0'5
(v) Maintenance factor - 0.9
BET-038 P.T.O.
SECTION C
Attempt any two questions only.
6. (a) Explain the centre-line nrethod of -€omputing
earthwork in building foundations.
Briefu explain the earthwork involved in laying of
pipes and cables.
(a) Briefly explain any four specifications of lime
con cretre work in buildings.
(b) Given the plan and section of a water tank which lies
entirely below GL, calculate the earthwork involved
total, and quantity of lime concr ete (1 : 2 r 4)
required to be laid in its foundation.
(b)
7 .
GL
30 crns
30 crns40 cnrs
7 0
GL6S'crru"
90 crns3 cm thick cc( l t 2 z 4 l
mT90 crns
r *
* !***ZO snsat
l z Z i 4 L C
sEcnoN x-x
8. (a) Explain any four important considerations regarding
formwork for concreting above plinth level in
buildings.
B,ET-039
Plan at GL
(b) A road has been aligned along a given direction; therelevant survey data, and also the proposed
formation levels are tabulated as under :
Distance(Chainage)
NSL (NaturalSurface Level)
ProposedFormation Level
0 m 1 1 1 . 8 7 m 111 '87 rn
3 0 , m 111 '87 m 1L ! ' 87 m
6 0 m 115 '62 m 111 '97 m
9 0 m LL4.50 m 172.07 m
130 m 116 '31 m LI22A3 m
150 m L 13 '90 m Lr2.203 m
180 m 115 '20 m LL2.203 m
Assume the proposed road cross-section astrapezoidal with side slopes of 1 : 1 and the
forrnation width equal to 7.50 m.
Compute the earthwork in cutt iny/filling, as the casemay be, in a tabular manner. rc
BET,038 1,000
Diplolna in Electrical & MechanicalEngtnsering
Term-End Examination
Decarber, 2006
BET-O4s' : CONSTRUCTION' PLANTS/EANTH MOVING PLANTS/MECHANICAL
TRANSPORT. : , r '
Time : 2 hours Maximum Msrks : 70
Note : Out of seven questions only fiue questions haue
to be answered, Quest ion 1 is compulsory. AII
questions csrry equal marks.r l l f l r l I r t l
' l. Fill in the blanks : " "
(a}Maio1B.udgetHeadCodeforE&MDefence.Serv jces
. ; ' '
{b} Rotary Pumps fall under the classi,l,iltion qf
(c) Major Budget Head Code for E&M Defence Services' 2078 is related to
; :
t
' : , t .
BET-045 P.T.O.
. l
The systems for Pump Testing Rigs are of the
,_ system and _ system types.t :
The swing jaws dr€ rnade of either _ steelor steel.
(0 The standard fitting for Impeller Ring ismetal.
micron dust particles are sufficient todamage engine parts by abrasive ,action. ,. ,, ,
' . . . . , 1 : , . . 1 , , . " , l
Explain the working ptinciple, sf centrifugal pumpswith neat sketch and expression
Explain the steps during installation of puffip,including foundation and piping designing andplanning.
3.' List out atleast twenty eight (281 safety'rneasuf€s which arerequired to be taken while handling equipments. 28x I :lA
2:
. - 1 |
4. (a) What are the two major tasks of Motor Graders ?Explain output in both the tasks. 5x 2-70
(b) Explain the cycle time (cm) and overall efficiencyfactor (E) for Motor Grader. , 2x2=4
r 1
5. (a) Explain the six steps to be followed while,calculatingoutput of a Bulldo zer. 7
(d)
(e)
(g)
'l
7
BET-045
6.
(b) Calculate the output of a Bulldozer from the data
given below :
(i) Height of Blade (H) : 0'75 m
" (ii) Length of Blade (L) = 2 m
(iii) Soil .onuursion factor (F) = 0'9
(iv) Fixed Time : 3 mins
(v) Variable Time : 5 mins
(vi) E : 0'8
Write short notes on the following :
(a) Disposal of MES vehicles
(b) Authority for sanction of additional meterage
(c) Changes in grant
(d) Road Roller types and their use
Explain the following :
(a) Factors governing move by rail
(b) Limitations for Air Landed Equipment
(c) Types of Asphalt Mix Plants
(d) Types of Compressors(List out names and give one line on features)
7 .
5
3
3
3
3
3
3
BET-045 1,000
Diploma in Civil Engineering
Terrn-End Examination
December, 2006
BcE-024 : coNSTRUciloN TEcHNoLocy - |
Time : 2 hours Maximum Marks : 70
Nofe r Qu estion no, 1 is compulsory. Attempt any fourmore questions out of Questions No. 2 to 7. AItquestions carry equql marks. E*plain your cinswers
with the help of neat and labelled sketches.
2x7l. Choose the correct alternatives
(a) A combined footing is generally used when
(i) number of columns is more than two and they
are spaced far apart
(ii) number of columns is two and they are spaced
close to each other
(iii) number of columns is two and they are spaced
far apart
(iv) there is only one column
BCE-024 P.T.O.
.
. . t .
(i) 'Cbrbel ' ;
( i i ) C o r n i c e ' ' ' ' i :
(iii) Header : ;
(iv) Stretcher
(c) The minimtim depth of foundation (D) can be
determined by: ' t 1
/ <
( i ) q l r - s r n Q I
: ; [ 1 . r i " 0 J
/ . . , 1 2 ; i(ii) +lffiJ\ -
- " ^ Y ) / ^
- ( , q \(iii) +Lffij: 7 : ( ) \
' :
(iv) +[i."] ut ]\ ^ - s i n z 0 J
: : , i
: . , ' .
(d) Soffit is the j : , ,
(i) inner surface of an arch ; '
( i i ) ' ex te rna l " iu rve 'o f an ' a rch" : . : " ' r
(iii) highest part of extrados of an arch
(iv) end support of an arch
BCE-024 2,.' -/
(e)' Common criterion for siz€s of doors used in India'is
as follows :
(i) Height '= Width ,
(ii) Height: width + 2 m
(iii) Height : width + 72 m
(iv) Height : Width + 1'2 m
(f) 'The' windows which: projects outward from the facel
line of the wall or a building are called
(i) Corner Windows
(ii) Clay-storey Windows
(iii) Bay Windows
(iv) Dormer Windows
b) As cornpared to English bond, Double Flemish bond is
(i) stronger
(ii) more compact ;
(iii) costly
(iv) None of the above
2. (a) What are the various types of foundations ? Explain
with the help of a systematic sketch
(b) Briefly describe the Grillage foundation with the help
of a neat sketch.
3. (a) What is darnpness in building ? Discuss its possible
causes and effects on the performance of a building
structure.
(b) Explain the procedure of post construction
anti-termite treatment given in buildings.
BCE-024 ' P t T . O .
' 4. (a) What do you mean by partition wall ? Describe thefunctions served by it in a building. . T
(b) Explain the three systems of a building structure . V
5- (a) Explain the various functions served by an Arch.Also write merits of Lintels over the Arch, T
(b) What do you mean by Scaffolding ? Explain itsvarious components. 7
6- (a) Explain the various factors affecting the selection ofGround Floorings. T
( b ) D e s c r i b e T i m b e r f l o o r s w i t h t h e h e l p o f a n e a t
sketch. 7t,
7 . (a) Explain the circumstdnces under which sliding doorsare used. Draw a neat sketch of a sliding door. T
(b) Explain the various types of Window hiiovement. 7
11000BCE-024
Diploma in Electrical and MechanicalEngineering
Terrn-End Examination
December, 2006
BCE-025 : ELEMENTARY CIVILENGINEERING
Time': 2 hours i Maximum Marks : 7A
Nofe : Answer o,[l que:stions. All questiohs carry equal
marks.
l. (a) Fill in the blanks : 7x7:7
(i) A soil rnass is a - system consisting
of solid particl€s, water and air.. '
(ii) The portion of the structure ,between the
surface of the surrounding ground and level of'
the floor immediately above the ground is
known as
(iii) While laying bricks in a wall, frog of the brick
must be' kept '
.' '
. :
. ' :(iv)
' One bag bf c€ment is - ,
'' kg.
P.T.O.BCE-025
(v) is the horizontal dividing member
in a window or door framp,t . , . ' . :
(vi)' Airports are classified as
+airPort. ,
(vii) . Concrete flooring is most commonly used
where wearing surface is required.
State whether the following statements ar€ true or. i :I a l s e : , . , , ' , , - ,(i) Structure is defined as an assembly of members,
ground or herd strata below it,, , ,;j ;
tii} Trusses ar€ uneconomieal for spans great&r,,"' l- ' '; ,I
I 1 ; , . r , , 1 ' : , * f i : 0 " . . . . . t ' , ' : '
t h a n 6 m . i ' 1 '
. ' :(iii) In case of perfectly safurated soil, .th€ vffd$ are
filled completely with tryiat€r.:
(iv) Frogs made in the bricks ar,e to,l iri
' ' of the brick., : . '' 1, '1"'
' r . l :
(v) Segregation is the property of
(b)
' t
hardened stage. ,
(\d) The site of an airport should not. r . " 1
r| . .by a national or state highway.
(vii) The window provided in' the gablq end sf- : . 1 : , , ' . , ' : , ' , . , . : - i . ' , i , : . ' f , l l : i
pitched ioof is called as gable window.
BfiF.Oz5 2
2. Answer any tws of the following : 2x7:74
(a) What are the points to be observed while supervising
brick masonry ?
(b) Enlist types of bond. Draw the sketches of any two
bonds.
(c) What arethe different types of connections ? Explain
any one in brief.
3. Answer any two of the following : 2x7:74
(a) What are the various features to be considered while
locating windows ?
(b) Enlist types of windows. Draw the labelled sketch of
sky-light window.
(c) What is meant by foundation ? Explain the functions
of foundation.
4. Answer any two of the following z 2x7:74
(a) What are the methods of the water-proofing ? Explain
any one of these.
(b) What are the objects of plastering ? Enlist types of
plastering.
{c) Explain in brief the construction of Water Bound
Macadam (WBM) road.
BCE-025 P.T.O.
5. Write short notes on any faur of the following : 4fi + *74z
(a) Components of an airport
(c) Bleeding of concrete ". i i
(d Bulking of sand r ;
(e) Plate load test ;
(f) Types of truss :
r , , ' : ? ' .
BCE-025
BCE-031 : ADVANCED SURVEY
Time : 2 hours Msximum Marks : 70
from the rest of the questions. (Jse of calculatoris allowed.
l- Define /descnbe in brief any seuen of the following :. , , . . : I
. , . , , j , , , . r . . , , . , . .
Z X 7 : 1 4
(a) Line of Collimation
,(c) ,l-$atitude and Departure : '
(d) ,, Tu:heometric constants
(e) Advantages of Tacheometry
(f) Trigonometric levelling
{d. , Transi t ion, curve , , , , , , .
(h) , Mid-ordinateof circularcurve ,,:1 i i ,
(i) GPS
fi} GDOP
BCE-031 P.T.O.
2.,, , The lengths and bearings of thre lines of a traverse ABCDE,
are given in the table. The length and bearing of EA has
been omitted. Calculate the length and bearing of line EA. 14
Line "" . " ength (m) '; ' Bearing
AB
BC 226.0 20" 20',' :;j
cD 187.0 280' O',
DE 192.0 210" 80',
E A ? ?
3. (a) Discuss basic principle'
tacheometry.''1r'r ;
, . : _
. . r : , . , l
(b) The following tacheometric observations were *ia"
on two points P and a from Station A :, . I . , i -
Staff atVerticalangle
Staff ,reading
Upper. . 1 .
Middle Lower
P 50 12' 1.388
a + 27" 35' L.286 Q,997
The height of the tacheometer at A above thb ground
was 1'55 m. Dete,rmine the elerations of P;and Q tf
the elerntion of A is 75'5 m. The stadia qo$stant k
and c are respectively 100 and 0'0 m., ; { . . . .
4
BCE-031
ry
4. (a)
5. (a)
BCE-031
I
(b)
If ,the base of a tower, is ,accessible, how would you
determine the difference of elevation 'betw
een
instrument station and top of the tower using
trigonometrical levelling ? ,
The observations were made on the top A of a
flag AB on a hill, from two instrument stations .Pand Q, 1"00 m apart, the stations P ald Q being
in the line wtth A. The angles of elevations of A at
P and a were 30" 05', and L7" 52' respectively.
The staff reading upon the B.M. (R.L. : 311 '29
m), -were: ;r€sp€ctively, 2,690,and,3,815. wlren the
instrurnent was at P and Q, the telescope being
horizontal . Determine the elevation of the foot of
the flag if AB is 3.5 m.
What are different methods of designating a
curve ? Derive a relationship between ihe degree
of curve and its radius.
The chainage of the intersection point of two
straights is 1060 m and the angle of intersection is
!20". If the radius of a circular curve is 57 0 m and
peg interval is 30 m, find : tangent length, length
of long chord, chainage at the beginning and end
of the curve.
(b)
1,0
P.T.O'.
I
6. (a) : Describe thB', principla on 'which rthe workingi of an ,i''
, :: . . iEDM is, , based. Also : explEin .:,the ,basic, , steps of
, .wp . r k ing w i {h an EDM. , , : , , - , r , , , , , . : , , , , : , T:: (b) Explain the basic principle of u: ,GPs,'Also'rdescribe
. l . t h r e e s e g m e n t s o f G P S : . . . , t . . 1 . , l . l ; . ' . . ' . ]
.
' , , . . . 1 .
" r l '
7 . write'brief notes'onl 'the following : ; r " il' s+x4=1.4
Ii) Collirnation test of theodolite; - - - - -(ii) Setting of circular curve from point of intersection
r . . . " . ' r _ - : . - v : : . - r -
: - - - - , i l r - . : - - - : : , . . : : - - : - :
( i i i l . 1Me tho {s 'o fSu rvey ingw i th .G f ,S , . ' ' , . . , i . j . '
{ivl ,Tangentiaf rnethod, used in'tach@rnetric ,$unrying. {
' - ' : ' , , , 1 , : : . * . ; . ^ ; r 1 ! : , . i . i : i
' ' . , , , , , ' - , , '
' . , l r . 1 . , l t . , . . i ; : ' l ' , i . - ' , : " - , . l , ' , -
t _ . , , r , . i l
1
. ' . ; .
. . . . : . i ' j . i . . . . ' ' ' . ' ; : ' - ' , ' . ' . . ' . . : ' , ' ' i . ' ' . ]
. . . : . t . ; . . . , , ' . , . ' l
. : ' . , , ) . . . , l " ' l '
. l ' i - , , ' . i : , 1 . r ' , , , , : . - t ' ; l ' ,
' , 1 ,
l l
BCE-031 I ' "l ,o0o
Diploma in Civil Engineering
Term-End Examination
December, 2006
BcE'032: THEORY oF sTRUcruREs-t
Time : 2 hours Maximum Marks ; 70
Note t Qu estion no. 1 is compulsory. Attempt ony fourquesffons from the remqining. Total numtber ofquestions to be attempted ere fiue. Assu me
, suitable dqta whereuer necess qry and mention i tclearly. use of calculqtor and steel, tqbles ispermitted.
l. Choose the most appropriate answer from the given
alternatives : 7x2=74
(i) The maximum longitudinal pitch admissible in riveted' | ) t
tension member joint is ,
(a) 300 mm
(b) 200 mm
(c) 30 times the thickness of the plate
(d) 10 times the diameter of the rivet
BCE-032 P:T.O.
,' (ii) " ,The diam eler of a rivet during riveting increases by
g rnrrr 1(a) 1'5 to 2 mm
( b ) j no " i r r a i nu ieu t i a l l i ' r i ' l ' r i : ' ' " : : i ' ' r ; : ' i ' i ' i ' ' r
( c ) 0 t o ' 1 ' 5 ' m h " i ' ' ' ' ' I : ' : r ' " ' i i
(d) ten percent of the rivet'diarr'teter
(iii) The permissible minimum distanc e aI a sheared edge ,of plate .*roT,,,- the geptre
i g,f
. tll* nuga
,ln I nveted
connectionis'about ' I : '
(a) 4 times the diameter of the rivet
(b) !'75 times the diameter of the rivet: l : . . i . ' l . : . , ] . . . , . . . ' i
(c) 6'75 tirnes' the diameter, of the rivet j
(iv) The weakest section in cornputation of strength in a
fillet weld'isI r t l t | . ' t t I o
1
' '
(b) side perpendicular to the load axis; ' . ' :
(c) throat of the fillet. l Lt II L.rgf L \,rI Ll rlt l l l l t i |-
(d) None of the above I
| . - ' . :(v) The'maximum steneeiness tJtio pe;isiible' ir,' steei' :
ties which may be suSected to compression under
w i n d l o a d c o n d i t i o n s s h o u l d b e ' { , ' ' ; l
(a) 250
(b) 350,
( c ) 4 5 0 : , :
(d) No limit
BCE'-CI3z
2.
(vi} The effective,area of ar,welded,rolled angle, fo'r', the
design'purpoge as a compression, lnember is equal,to
(a) gross area :
b) full, area of welded lnn : , . ,
(c) full , area of wglded leg Plus ,5O%0, of the
o u t s t a n d i n g l e g , , . r . , , , ' , , . ,
(d) 500/o of the total area of anglel
(vi$ The effective length'of a steel column hinged at one
r ; . end and , fixed , dt ' the, other '"end, as per codal
, provisions, is equal to
(a) 0'65 x distance between supports
(b) 0'80 x distance bet*een supports
(c) distance between suppo*s ' '
(d) 2 0 * dirtunce between supports' ;r i' r'
:
A ,bearn ABC is loaded as shown in Figure 1. Analyse the
beam to determine the, support moments and, 'reactiotrls.
Moment of inertia of both the spans is same. Draw B.M. i
* 6 m
@ c== 3 m 1zrn{
Figure 7
3
14
BCE-032 'P'T.Ot
Design' a sirnpb supported'beam of, 6.0: ,m effectivd spancamTing UDL of '50 kN/m. The compression flange Llaterally supported throughout, Use steel of fu = 2s0 Mpd. 14
(a) A beam has a span of 20 m. Draw influence linediagrams for bending mornent and shear force at apoint 'A', 7 m from the left'handi support. T
(b) Calculate maximum negative and positivel SF at 'A'
', :of tlre above beam, when two conRected wheel loads,
from left to right. The 6 kN load leads while rolling. 7
,,5' A steel strut consisting of double angles placed back
to back on the opposite sid e .of, 10 mm gusset platehas an effective, length of 2;5 m.' Design ,the strut to
l l i ' ' f i
carry a compressive load of 300 kN using steel offu = 25a N/mrnz Tuk* appropriate:value.of rallowable, axfal .,.compression, su. from following table.' : ' 14
I/r oac o
' i l C r
1 0 150 60 r22
2A 148. . r l , 70 L12
30 :14:,s 80 101
4A 139 ,, 90
50 'r32100 t r ' 8 0
3.
4.
B'CE.032
6. A double angle tie of ISA I25 mm x 95 mm x 10 ffiffi,
placed short leg back to back, is connected to the same
side of gusset plate of 10 mm thickness using 20 mm rivet.
Calculate the tensile load this member can carry if the
angles are properly tacked together. Use steel of
f : 250 N/mm2.v
A propped cantilever shown in the figure carries the loads
as shown. Determine the support reactions and also draw
the SF and BM diagrams.
7 .
14
14
l _ S m _ + _ Z m l f _ Z ^ l
Figure 2
8. Two ISA 90 mm x 60 mm x 10 mm angles form a tie
member of a truss and are subjected to a load of 250 kN.
These angles are connected to both sides of a 10 mrn
gusset plate. Design the welded connection using only side
fillets . 74
25 kN
BCE.O32 1,000
1 ' ' ,
?
:i.-i'
i l
Diploma in Civil Engineeting
Terrn-End Examination
December, 2006
BCE'033 : ENVIRONMENTALENGINEERING
Time : 2 hou,'s Maximum Msrrcs : 70
Note i Attempt fiue questions in all. Q. No. 1 is
, '::fu'""-
l. (a) Water treatment units are normally designed for
. (i) 50 years
(ii) 7 5 years
(iii) 30 years '
(iv) 15 years
(b) According to Kuichling formula, water required for
fire-fighting is given bY
(i) a: 3182 #( i i ) o : 5 1 8 2 F
(iii) a 2L82lF
( iv) a :8182 ,p
BCE.O33 P.T.O.
(c) Water having pH equal to 4.0 is(i) Acidic
(ii) Alkaline
(iii) Neutral r
(iv) None of the,,dbove .
(d) Which of the following practices causes reduction inper capita:w?t€r consumptiory T ,
(i) Good water, qualitp
(ii) Sewerage system
(iii) Metering system
(iv) All of the above
(e) Ground water is usually free from(i) Suspended impurities
(ii) Dissolved irnpurities
(iii) Both of the above
(iv) None of the above
(f) Hydraulic ram works on the principle of(i) ejector
(ii) water hammer
(iii) .cenhifugal force
(iv) None of the above
(g) The colour of water is usualty expressed ih(i) Nickel scale
(ii) Silica scale
(iii) Platinum-cobalt scale(iv) None of the above
BCE-033
,(h) In sedimentation tanks, settling of impurities occurs'
under the action of
(i) sun rays
(ii) gravitational force
(iii) biological action
(iv) None of the above
(i) Slow sand filters can remove bacteria upto
(i) 80 - 90o/o
(ii) 90 - 950/oI
(iii) 98 - 99o/o
(iv) None of the above
0) The gas which is generally found present in sewers is
(i) HrS
(ii) co,
(iii) cHnl
(iv) All of the above
(kl The primary treatrnent of sewage is meant for
(i) Removal of larger suspended matter
(ii) Removal of fine suspended matter
(iii) Removal of dissolved organic matter
(iv) Removal of bacteria ,
BCE-033 P.T,O.
,{l) Bioctrern*ical Oxygen Demand (BOD} of sewage is
(i) oxygen required to oxidise biologirulb' actiworganic matter
(ii) oxygen required to oxidise biologlcalty inactiveorganic mattgr
; . ., : , ,,, rr.(iii) All of the above
(iv) None of the above1
(m) composting and lagoonings are method of
(i) Filtration'
. ' t
, '
(ii) Sedimentation
(iii) Sludge digestion
(iv) Sewage disposal {+
(n) The trickling filters work on the principle of
(i) Attached growth aerobic proc€ss
(ii) Suspended growth aerobic proc€ss
{iii} Attached growth anaerobic process ,, j,
,ic process 14
2- (i) Source of water for water, supply schemes shnuffi bes e l e c t e d c a r e f u l l y . D i s c u s s . . . ' . ' : . . . ' . . . . . ] " l
(ii) Examine shallow and deep wells as sourc€s of waterfor water iupplv schbmes.
i' ' I '' .'' ' 'i' 7
- i
3- With the help of neat sketch, describe the, worlcing ofcentrifugal pumps. 14
BCE-033
4. What aremanholes ? With the help of neat sketch discuss
any two types of manholes
5. Discuss the working principle of Trickling Filters. Also draw
a flow diagram in schematic form of wastewater plant that
includes trickling filter.
14
14
6. Write an essay on wastewater effluent reclannation and
14re-use.
7. Write short notes on any fourof the following : 3ix4=1'4
(i) Coagulation
(ii) Break point chlorination
(iii) Flanged loint
(iv) Testing for water pipelines
(d Grit chamber
(vi) Rotating biological contractors
(vii) Sludge conditioning
BCE-033 1,000
' , " , , . ' '
Diploma in Civil Engineering
Term-End Examination
December, 2006
BCE-034:ESTIMATING&OUANTITYSURVEYING-I
Time : 2 hours Maximum Marks : 70
Nofe , Qu estion number 1 is compulsory. Attempt any
*t{ jf{,'{{i;',J:i*{'ii'fi :^i'l. Choose the correct answer from the given alternatives.
7x2:14
(i) The bricfwork is measured in sq.rn., instead of cubic
metres, iD the case of
(a) Honeycornb brickwork
(b) BNV in lime
(c) Reinforced BlW
(d) BNV in fire-places
P.T.O.BCE-034
. '(ii), ' , the most reliable estimate is
(a) Plinth area estimate
(b) Preliminary eltimate ,, . ir . i i , ' , 1 ' ; : , ' . , ,
t , 1 . , 1
(c) Detailed estimate' . : . : . . . . , . t i
(d) Cubic rate estimatei
(iii) According of Bureau of Indian Standards (BIS), in
methlod,,of ,rneasllr€rnent,rthg order is in. sequence
(a) length, width md', height
,, (b)
(c) height, length and width
"r {d) None,,o'f thgq€ ,-
: , i
(iv} '' 'For plastering the exposed' brick walls, the cbment. 'safid'rnortar should be '
:
: : ( d 1 : 6 .
( b ) 1 : 4
( c ) 1 : 5'
( d ) 1 : 2
(ui' ''
Prismoidal formula for calculation:of earthworli is ':
( a ) v : t ( A r + 4 A * + A r )
( b ) v = + ( 2 A r + A * + 4 h z l ' : " ,J l ' ;
I( c ) V : ; ( A r + 4 A r + A * ) i
5 r
,( d ) V = ; A + 4 A r + A r ). - - r 6 . m
j - . :
BC'E-034 2
or(vi) The projections of head
frame are called
(a) Posts
(b) Transom
(c) Horns
(d) Chocks
What perce:ntage,1
money (
(a) TVo ;
(b) , 2o/o
(.1 5o/o
(d) I0o/o
sill of a door or window
of(vii) estimated costt
. i .
is security
methods of building
method in brief.. :
following items of work
8) in foundation
in, steps upto plinth
in superstructure
2. (a) \A/hat are the various
estimating ? Explain any one
Estimate the quantities of the
from the given drawing ::
(i) Earthwork in excavation
(ii) Lime Concrete (1 : 4 ::
(iii) Brickwork 1 : 6 in CM
( i v ) B r i c k w o r k l ' 6 i n C M
7 0
BCE-034 P.T.O,
{v) 12 mm thick cement plaste,, +
Inside and Pointing Outside
P$$I
J
m$
:r-{ '
(Jj
EOIooEooEa{-.
o+jFr
'j.l
{r*n
t r . IvI
j;i$-s+
BCE-,034 4
3. Calculate the quantity ,of,earthwork for, 300,,m, length.'foflai , ,.i
portion of road in cutting, the height of the banks at twoends being 1'10 m and 1'50 m. The formation width is4'00 m and side slope is 2'i 1 Florz': Vert).
;
Solve the question by any twio methods from thefol lowing : r : . , , : : , i , , . , . , : " " ." 2x7-74
(i) Average cross-sectional area rnethod ' i
( i i) 'Mia-rectional ' lre5'metiod i" ; ' " ' ; ' I ' i ; ; '
, . , ( i i i) Prismoidal formula methodo- ,,, , , ; , , , , , " i : , ; ,1.,.,,, , I
, ' ,4. Prepare the analysis of rates for any twq, sf the following,
i t g m s o f w o r k s : ' " . - ' ; ; i ' ) ' : ' " ' ' : r ' 2 x 7 = 7 4
. i 1
( a ) 1 : 5 : 1 0 c e m e n t c o n c r e t e i n f o u n d a t i o n . . . ' ' . , ' ,
(b) second class brickwork in superstrycture , ;, , , ,
(c) 1 : 2 flush pointing in cement mortar 1,, , i i', ,
(d) RCC 1 : 2 : 4in beams and lintels
5. Write down detailed specifications of any twoitems of the
2x7:74following work :
(a) White washing and colour washing
(b) First class brickwork 1 : 6 CM in superstructure
(c) sal wood work in door frame and shutters
(d) Stone masonry works in walls
BCE.O34 , ,P .T .Oi ,
)rrrof the following , '
4x<3,t'=14i4
(a) Glazed doors and windows
{ b } . ' U , , d e r w a t e ' i o n . r e t i n g ' : ; : l : . i . ] . l ,, ;
. . ' ; . , ' , l t
- : ' . ' '
(c) Lift and lead in earthworkl . i , , . , i . : " ' ' . ' , . ' . . ' , l i , : , ' ,
(d) Muster Roll
(e) Technical sanction
(f) Deposit worls :
.. : . i i . i ' . i
; . , : ; ' ' , , l
: .
, l i
: l ' , : . i . . .
l^' o 1,000,,BCE.OS4
Diploma in Civil Engineering
Terrn-End Examination ;
December, 2006
BCE-036 : SOIL, ROADS AND AIRFIELDS
Time : 2 hours Maximum Marks : 70
Nofe : Attempt fiue questions in all. Question no. 1 is
compulsory. Attempt sny four qudsfions from
the remaining questions. (Jse ol calculator is' t t
allowed. Graph papers to be supplied on request,
l. Choose the correct alternative : ax2I
Q
(a) A soil has a bulk density of 22 kN/m3 and water
content \00/o. The dry density of the soil is
e(i) L8'6 kN/m3
(ii) 20 kN/m3
(iii) 22 kN/m3 . .
(iv) 23'2 kN/m3
BCE-036 P.T.O.
(b) The maximum dry density upto which any soil canbe compacted depends upon
( i ) i ' - i i r t u r e c o n t e n i ' o n l 9 ' r ' ' ' I ' ' ' ' : ' : ' '
(ii) amoErnt jof ;corirpaction,eriefgy u,riy
(iii) both mcisture content: ,; i:and amount ofcompaction energy
(iv) None of the above.-. ' r i i i
,: l i : i , i i , i . j ' ; , f j i i l . : i ,,, .ori 'r:,
' :" ,1i ,.. . f"; .t,
(c) In hill roads the side drains a$e
(i) only on hill side of road' I : : ; ' . ' . l ,
(iii) on both sides of road' . 9 1
(iv) None of ,the above
l,i t,'.l );, ;i i{,;.1 i:f;,-}l;t
provided
(e) Portion of theknoun as
, 4
: i I r . - i : : , I j
airport other than: lhe
(i) Approach zane
. .(ii) Terminal area
(iii) Approach area
(iv) Shoulders
BCE 086
(f), , Which of the following corrections ,is lrof applied tobasic, runway length ?
(i) Corrections for elevation
(ii) Corrections for temperature
(iii) Corrections for sag
(iv) Corrections for gradient
(g) Runway is usually oriented in the direction of
(i) Head wind
(ii) Cross wind
(iii) Wind rose
(iv) Prevailing wind
),. (a) Using phase relationships, show thai relationshipbetween porosity (q) and void ratio (e) can berepresented as
e = I1 - q
,(b) A soil is cornpacted at 50 percent moisture content: ,
and has a unit weight of tO [N,/ms . Calculaie its voidi ratio, specific gravity, dry unit weight and submerged
unit weight
3,
, , 5
'P:T..O,cE-036
(b) The, foHowing are the results of a standard
performed on a sample of soil: :
S .No.
Moisturecontent mYo
Bulk unit weiqhtkN /^3
v
1 , 7 . r 18.70
2 9.0 20.39
3 1 1 . 1 22,00
4 13.0 2 L . L 0
5 74.9 19.43
6 16.8 18 .10
Plot the water content - dry density, curve. and
obtain the optimum water content and maxi.tT
dry, denbity
Describe the main features, of tlre Nagpur plan#.:.. :q , $ 1 , i * . ,
Explain the considerations for selection of *,
of desert roads. :' '
4. (a)
(b)
5. (a)
(b) ,
6. (a)
(b)
:
Describe the various operations involved in
construction of modern concrete road.'
Explain the main cOnsiderations in '',€Hlbdnkment
design.
Describe the important characteristics of an aircraft,
Explain the functions of 'Fuselage' and :Wings' of an
aircraft.
the' . ; F
BcE-036
7 . (a) Describe the important factors required to be
consid ered for improvement of existing airports. 7
(b) Explain the necessity of runway maintenance. 7
8. Write short notes on the following : 4$;
(a) Shrinkage Limit
(b) ZeroAir Void Line
(c) Terminal Area
(d) Basic Runway Length
BCE-036 1,000
.
Diploma in Civil Engineering
Term-End Examination
December, 2006
BCE-041 : THEORY OF STRUCTURES llr
Time : 2 hoursr ;
Maximum Marks : 70
Nofe.; Attempt Q. IVo, I which is cornpulsory and any
o the.r faur questions. In qll, solue {iue questions.
i data whereuer necess ary qnd mention it clearly.
Use of calculator is permitted.
1. Choose the most appropriate answer frorn the given
alternatives : 7x2:74
{i} In limit state method of design of RCC flexural
members the stress-strain relationship for concrete is
assumed to be a parabolic curve upto a strain of.0'002 in concrete, thereafter it is constant upto
collapse. The height of this point of the' stress block
from the neutral axis is :
(a) 4/7 the depth of neutral axis
hl 3/7 the depth of neutral axis
(c) 5/7 the depth of neutral axis :(d) None of these
BCE-041 P-.T.O.
(ii) ln Limit: State method of design of RCC flexural
. forcss acting on' the sectibn frbm ,the ,topmost fibreof con crete is at a distance of
. :
. : : . ! ; L :
0'57 the depth of rteutral axis
0'35 the depth of neutral axis
Q'42 the depth of deuhal axis
None of these
(iii) In Limit State' method of design of RCC flexuralmembers the vertical deflection limit is deemed tohave been satisfibd if the ratid of the basic ualue KBof the etfective span to effective depth of themeniber in case of a continuous beam is
(a) 7
(b) 20 :. . : . a
(d) 30' i l
(iv) The minimum rein{orcement in a slab ig provided as a
psrcentage for grade ,-gf
steel Fe ZS0 fs(a) 0'15
(b) 0.2a
(c) 0.25
(d) 0.10
(a)
(b)
(c)
(d)
BCE'O41
(v) The minimum longitudinal reinforcement in a'column
is provided as a percentage of gross-sectional area of
the column. This percentage is
(a) 0'6
(b) 0:8
(c) 1 '0
(d) None of thes€
(vi) The diameter of lateral ties in a column is taken as
(a) I/4 of the diameter of the largest longitudinal
bar
(b) 6 mm
(c) greater of (a) or (b)
(d) None of these
(vii) The pitch of helical ties in a circular column shall
not be more than
(a) 100 mm
(b) 75 mm
(c) I/6 of the diameter of concrete core
(d) least of (a), (b) or (c)
2. A reinforced concrete beam of width 300 mm and
overall depth of 550 mm has to resist an ultimate Mu of
150 kNm. Using concrete of grade M 25, nominal cover
of 30 mm and shear reinforcement of diameter 8 mm,
determine the area of steel of grade Fe 250 and number
in terms of 20 diameter bars. 14
BCE-041 P.T.O.
3. ,A reinforced concrete beam of urid,th 250 mm and oVerall
depth of '550 mrn is reinforeed with 4 bars of 20 mm
diameter of grade Fe 415.' Check whether the section ii
under-reinforced or over-reinforced. Also, deterrnine the
safe moment of resistance of the section. LJse concrete of
grade M 20 and an effective cover of 50 mm. The
permissible stress in steel oo is 230 N/mmz and in concrete
o^r^ is 7 N/m ̂ 2. 14cDc
'Design the longitudinal as well as transverse reinforcement
for a rectangular beam of width 300 mm and overall depth
of 500 mm. Use concrete of grade M 25, steel of grade
Fe 415 and an effective cover of 50 mm.
Ultimate Bending Moment M.. = 100 kNmuUltimate Shear Force Vu : 100 kN
,Ultirnate Torsional Moment T = 9 kNm 14
5. Design a simply supported beam of 5 m clear span loaded
udth a uniformly distributed load of 15 kN/m inclurCing its
self weight. Assume support width 250 ffiffi, grade of
concrete M 2A, grade of steel Fe 415 {or main tgnsion
reinforcement and Fe 250 for shear reinforcement. 14
4.
BCE.O41
6. Design a two way reinforced slab for an office floor of
effecti ve size 3.5 m x 4-5 m simply supported on all its four
edges with the corners prevented from lifting. Live load on
the slab is 4 kN,/mz. Grade of concrete M 20 and steel
Fe 415 moment coefficients are as undQt : 14l i xO *-:'-
r.f-. \
sj"
FE ggE*
\orO?O
xda
-{rr
c.q) ._l(O - -
l H * P
l H tl c S1 ( 6 a
l 9el bl - ct a
?sl
r\OF{
O
LOI:
OO
o
sr-{
C}\00C)O
9r{
LOmOo
opF{
o\f-O(-r^
qlr{
c\r\?O
r{
;$.\o?O\oLO?O
coU
c ' o8.8 ,T EO !-,1o - =
F'!
+rcP FP *C go ' 7
'? .F- r ( 6
BCE-041 P.T.O.
7. Design longitudinal reinforcernent'for the circrdar column of ,, '
diameter 350 mm for a factored load of 1800 kN andeffective length of 2.7 s metres with helical ties of g mrndiameter at a pitch of 45 mm c/c with a nominal cover of40 mm. Adopt grade of concrete M 20 and steel Fe 4.[S. 14
8- write short notes on any four of the following :
(a) Basic Assumptions for Design of sections
(b) Limit State of Collapse
(c) Stirrups
(d) Retaining Wall
(e) Type of Staircases
(f) Development Length
S1ix4=!4
BCE-041
Note ; The following design data may be used where verrequired
A. Design sh ear strength of concr ete rr, N,/mmz(Limit - State fUethod)
LOr\N
c\l00()
C)o\O
OIc\l
c\mc)
oOmC>
LO+rN
r{mC)
Loq9O
c)?c\t
o\r\O
C\I00O
LO\-F{
rOr\o
@fr.
O
OI
c\lr\()
rilr\O
roqr?-{
r\\oo
Or\O
OO;
c\l\oc)
s$\oO
Lor\O
\oIO
r\LO
O
c)Ic)
@\tro
ol9O
LOqrC)
\oqpO
\ocO6
LO
"-{a
@qrO
o\NIo
ro,:o
v,
Oc)
C)c\l
Eo)gL)co
O
LoN
o)g()o
C)
BCE-041 P.T.O.
B. Design Bond stress Tud N/mmz :.
(Limit-State Method) for bars in tension.
Steel Fe 250 Steel Fe 415
Concrete M 20 r .20 r,92
Concrete M 25 1.40 2,24
C. Design Shear Strength of Concr ete T, ** N/m*Z ,'
(Limit-State Method) :
Concrete M 2A 2'8v l L v L - a
t l
:,D. For solid slabs, design, shear strength': of concrete
shall be taken as K T. Values of K are as below :- c ' r
Overalldepth
'of slab(mm)
300or
more275 250 225 200 175
150or
less
K 1.00 1 0 5 1 . 1 0 1 ' 1 5 r'20.r .25 1..30
8BCE-041
E. Modification factor Kz for different
tension reinforcement Art in flexural
for stress in steel at service loads, f,
may be taken as below :
percentages of
RCC members= 240 N,/rnm2,
100 A.tAd K2
0 .2 7 . 7
0 .4 r .32
0.6 1 . 1 5
0 .9 1 .05
1 . 0 1 . 0
r .2 0.95
1-4 0.90
r .6 0.88
1 . 8 0.86
2 .A 0.84
2,2 0,82
2,4 0.89
2,6 0.79
2 .9 0 .78
BCE-041 1,000
Diploma in Civil Engineering
Term-End Examination
December, 2006
BcE-042' r:ilffHlHfi ouANilrY
Time : 2 hours Maxim,um Marks : 70
Note 3 Attempt fiiue questions in all. Quesf ion,No. 1 is
compulsory. Ass ume suitable data whereuerrequired, Use of calculator is permitted.
l. Select the correct answer frorn the given alternatives. 7x2=74
(a) , Which is the more accurate ,estimate ? '
(i) Item wise :
(ii) Plinth area basis' l
(iii) Service unit basis
(iv) Bay basis
(b) The service unit for an Apartment building is
(i) per tenement i .
(ii) per seat
(iii) per bed
(iv) per cell
BCE-042 P;T.O.
, , i,{.) SQuaring dimensions is the process of "(i) Collection of quantities
(ii) ,Bobking:of dirnehsironb :':1, ,. ,r,i;, ,.1',,,i '1"t
(iii) writing.tt'lffnrions i":,lT?4ew11,, gdnner(iv) Adding and/ar multiplyrng of the recorded
dimgnSi6nS,* ' ,: r . ,; ,',, : ;., .'; ''., i'. ,,
(d) Collections during taking off quantities of work are(l) . , r@blOul*ioniW:Srar{titids, j r,; ., ",,,1''i)* l'i;'r';i
{ii} Prelimina$ c&klations'. to"drrive at a dimension
: :' i
, , . ' . , ' , . ' t j , : : . : ' . .
{i
(e) In the analysis of rate of an,':itern ,of :$uork.tl,re,'r'ninorl;3f r",, ir.
factor is(i) Cost of material
, , . t i i i l Cos tdue tos i t econd i t i ons , , , : . , , r . , " itiv} None of the above
(f) For concrete mixing rnachine rating 4gil/300 endicat€s, '
the ratio of(i) coarse aggregate and frne aggr?gate \(ii) per batch volume in litres of dry and wet mix
(iii) water and dry mix
(ivi mass of dry /wet mix . : ;
(g) Which of the following could be the part of 'Repair toJoinery' ?(i) Seasoning of wood
{ii} Painting and Polishing
(iii) Taking doum door/windorp shutters, :
(iv) Scrapping the paint from shutters
BCE-042
2. A building has six identical ,columns of R.C,C.,of the given,
section in the sketch. Calculate the followi*g ,items of the
building : a*S i,:tn(i), Cement concrete t ,: 4 : 8 in column foundations, ,
(ii) ,R.C.C., 1 :'2 :r 4 in.colurnn foundations
(iii) R.C.C. 1 : 2 : 4 in column upto plinth level
ttv) Reinforcement in stirrups upto plinth level assuming40 mm side cover
. ' ,
"
' 1
PL
Nale : AII
lcE-042
1200 x 1500
dinte,nsions arg in ffiwt,
R.C.C, column 250 x 400
C . C . 1 : 4 : 8
P.T.O.
3. A building has the following type of doors and windsrils ' :
Fully panelled doors 1000 x 2100 mm - 5 nos.
FluSh doors 900 x 2100 mm - 3 nos.
Fully gleized steel,windows 1500 x 1200 mm 10 nos.
Rolling shutters .
Calculate the paigting prea reguired,for painting doors ild* ;1.4windows.
4. Prepare analysis of rates for the following items of work :
5. A building has a terrace of size 20000 x 10000 mmenclosed with a parap€t wall 230 mm thick and 75A mrn
l
' '(i) ' "Brick:work
'with well-bufnt : traditionalsuper-structure in cernent mofi?r 1 t 6.
(ii) Form-work for suspended slabs such asfloor slabs, landing and similar works.
high. Calculate the following items :
2x7=74
bricks in
roof slabs,
4xS ! =14
(i)
(ii)
:C . C . g o l a 1 : 2 : 4 a l o n g p a r a p e t w a l l s . . ' " " ' l
l q
Copp ingonparape twa l l assumingR.C . . c .1z2
of cross-section"230 "
10q mm,''.
Water-proofing treatment on ,ter:race,in sq. m.
Number of rain water pipes assuming 40'sq. rn shdlfli
be c@vered by each pipe.
(iii)
(iv)
BCE-0,42
6. (i) Plinth area of a building is 1200 sq. rn. The plinth
area rate of similar building in the same area areRs. 8000'00 per sq. m + !0o Building Cost Index.
Calculate the cost of the building.
(ii) A hospital building is proposed to be constructedfor 200 bed capacity. If cost of sfmilar building isRs. 50,000'00 per bed + 5o/o Building Cost Index,calculate the cost of the building project. 2x7=74
7. An R.C.C. column of cross-section 250 x 400 mm andheight 5000 mm has main reinforcement (vertical)
20 mm dia bars -- 4 nos. and76 mm dia ba 2 nos.Calculate the following quantities : 2;x7:74
(i) Form-work for the column
(ii) Vertical reinforcement quantip neglecting top andbottom covers
8. Write short notes on any four oI the following : 4:.3; =74
(i) Star rate items
(ii) Prorata analysis of items
(iii) Essentials of analysis of rates
(iv) Principles for abstracting and billing \
(v) Importance of Estimation
. BCE-A4? 1,000
r t
1 , '
Diploma in Civil Engineering
Term-End Examination
December, 2006
BcE-043 : coNsrRucrloN TEcHNoLoGy-il
Time : 2 hours Maximum Marks : 70
Note r Qu estion no. 1 is compulsory, Answer any fourquestions from the remaining.
1. Fill the following blanks with correct answer : 7x2:14
(a) Smoke test is carried out in the supervision ofwork.
(b) The aim of planning repair is to thebuilding at a high level of efficiency.
(c) Fire caused by combustion of LPG gas is classified as
(d) Bar charts indicate the forecast of the dates of
- and of various sections ofwork.
(e) In fire load grading if .the energy limit is more than2,3 x 106 I*J/mz it is consid ered:,as fire
BCE-043
load.
P.T.O.
is used for overlapping rnembers and
when members are not coaxial.
(g) In a residential building, for bedroom and living
room, rate of supply of fresh air is
*34r. ,'
2. (a) Discuss the planning of Annual maintenance of MES
assets. 7
(b) What are the constraints in the maintenance of
buildings ? Explain in detail. 7.
! , r J
3. (a) Explain the major factors considered for fire accidents. : . ' . . . ;in a building. 7
' !
(b) Discuss 'uarious fire resisting properties of the '
following building materials : 7
(i) Concr ete
(ii) Glass
4. (a) Describe in detail the essential requirements of a site
organization.
(b) Discuss the aims and requirements of supervision at
construction work site.
5. (a) Explain with the help of neat sketches, the built up
section of structural elements that you would suggest
for plate girder. Justify the section you have
-rnnAsad 7proposed.
(f)
7
BC,E-043
(b) Describe briefly various methods used for making
connections in steel structures, discussing the salient
features and advantages of any one method. 7
6. (a) How are sound waves characterized ? Discuss any
two properties of sound waves.
(b) List various acoustical defects in an auditorium.
Explain any two of them.
7 . (a) List the types of road rollers. Explain any two of
them.
(b) How are mixers designated ? Explain the working of
Reverse drum mixer.
BCE-043
7
1,000
Diploma in Civil Engitreering
Term-End Examination
December,?OOG
BCE-044 : GONGRETE TECHNOLOGY
Time : 2 hours Maximum Msrks : 70
Note r Ansure r en! fiue questions including qu,estion no.
L which is compulsory. :
1. (a) Answer any two of the following in brief (2 - 3 lines
only) 2x2:4
til What do you mean by M-20 grade of
concrete ?
(ii) What do you understand by "Colcrete" ?. . ' - , . ( i i i )Def ine" "1 : : ' : * , " ; .
(b) Fill in the blanks (any fourl 2
(i) is the first compound of cement to' teact with wa er.
(ii) apparatus is used to determine
soundness of cement.
{iii) Resistance of aggregate to wear is known as
of aggregate.
1BCE-044 P.T.O.
The temporary joints provided betweensubsequent concreting operations are called
j r jo ints. '
One'bag of cement is kg,
(c) Select the correct option (uny iour) , 4x7=4
(i) (C3S/C,S) provid€s fllore resistanes,to, $ulphateattacks.
. '(ii) "Compaction factor test" is used to determine
(wprkability/compressive strength) of concr€t€.,,,,,ii
(iii) Heavily reinforced conirete members require(high Aowl degree of workability of concretemix.
(iv) The process of mixing cement mortar in a
, , machine rnixer prior to the mixing of first batchof concrete is called as (charging,/buttering) themixer.
. . t t " '
For determining the, ptaldnrd cpngist.ency of
rratui.(r'r"edle'if 1 Lii. mm/cement of Vicat Appeplunger of 10 mrn dia) is used. : ,
. , j . :
2. (a) Differentiate between any two-,of the, foilowing : 2x4=8
: " :.,'(i): 'i , Segregation and, Bleeding of concrete i
(ii) Hydration of C,S and C,SJ Z
' 1iii1" Rodding and Tamping of concrete' :
| ..
(iv)
(v)
(v)
BCE.O44
( b ) . D e f i n e t h e . f o l l o w i n g ( a n y . t w o \ :
(i) Workabilify of con crete
(ii) Elongation index of aggregate
(iii) Consistency of cernent
3. (a) What do you understand by 'batchiRg' ? Give the
methods ,of batching and describe them, briefly . 2+6:8
(b) Enlist the different concreting operations iri sequence 6
4. (a) With the help of neat sketch of apparatus, describe
the test procedure of any one of the following :4+6=70
(i) Initial setting time of cement by . Vicat
Apparatus.
(ii) Workability of concrete mix by Slump test
(b) Classify the aggregates on the basis of their shape,
size and unit weight. Describe them briefly 4
5. (a) Explain the precautions to be observed during storing
of cement in stacks. I '
(b) Describe in brief the method of 'Membrane curing'
or 'Electrical curing' of concrete. 6
6. (a) What do you understand by pre-cast concrete ?
Discuss the.advantages and disadvantages of pre-cast
2+8concrete.
(b) Give the applications of 'Gunite'. 4
B,CE-044 ," ,P,T.O,
7 . Write short notes on any four of,thre following, i, :,;,
(a) Sulphate resisting cen'tent and its applications
(b) Alkali-aggregbte,'reaction ' ;
(c) Gap-graded aggregates
(d) Ready mix concrete
(e) Maxirnurn density method of , rnix design
(f) Atramsi water cemenJ ratlo law ,. , .
4#+:t4
l
BCE-044
Diplorna in Civil Engineering
Terrrr-End Examination
December, 2006
BCE-045 : CON$TRUCTION DRAWING
Time : 2 hours Msximum Marks : 70
Note : Part A is to be attempted on answer scripts andl
Part B on drawing sh,eet, (Jse of calculator is
allowed. Assume su itable dats whereuer necesssry,
PART A
Attempt any fiue questions.
l. (a) Why is an object preferably described in a graphical
mode ?
(b) Which types of drawings are required for the
construction of a structure ?
'2. What are the main considerations for fixing the depth of
footing,? : : :
BCE-045
5
P.T.O.
Explain under what circumstances the followingfootings are provided ,
'
, , . 1 : - . . 1
(i) " Raft fbunditioni' without"beariis ' 1: r: i
(ii) Raft foundbtions"with beams' ' '' i
Sketch the plarirand reinforceme;t details of a raftfoundation without beams.
4. (a) o rWhat are'the'rtrain:iypes'of'wobO"rr jointb p ':i',
(b) Sketclr the plan and, elevation of a lap joint, With $€el ,,,.strap and bolts.
. ' . - . t
5. (a) Show by means of a sketch the various zones oftypical butt-weld. 2:
'r.. , ' {b}, ,,Show 'by rneans of sketches .,all .types of tllelded,,*,.
5joints.
6. Mention various architectural design aspeets of 'a staircase. 7
7. (a) Why arg curved roofs so{ne times prefened over flat
: , o o i r ? ' ' : ! l
" ' . :
i ; : ' s *
(b) Why are thin shells and domes called stressed skin
" " S t f U C t U f g S ? ; : , r ' , ' , ' j ; ' i ' 1 ; - i . r i : l i : i : , ' ' t l i ,
S +. : . - r ; . . . , . - ; , , r , . : l - j i . ; ,
-
2
What is a shell roof ? What type of shell roofs arecomrnonb used ? -,
What is the ideal form of the main reinforcemeht'iha shell roof and in what shape is this reinforcementprovided'? Show by means of a sketch 4
(a)
(b)
(a)
tb)
8.
BCE-045
P.ART.B
Atternpt, question number '1 urhich ,is compu'lsory and
attem,pt gny Qne Que,stion from the remaining. Adopt
suit:sble scsle. :
. a .
1. Draw the sectional elevation of a square RCC footing of
size 2.L m for a RCC column of size 400 x 400 provided
at a depth iof '!.2 m below'the ground' level for the
fol lowingdata: : 10
.-
Lateral ties in the colurnn 6 0 @ 300 c/c
Overall depth D of the footing 400
Depth of the footing at edges 150
both waysJ
2. A T-beam floor of effective size 6 m x 12 m of an office
bui ld in9.consis ts 'o fan. ,RCCslabspanning:betweenr ibs
spaced at' 3.,0 ,m c/c. The effective ,span of the &beam is
6,m. The design data is given below :
Overall depth of floor slab : 110 mrn
Main reinforcement of slab 8 0 HYSD bars, : @'150 'e/c
Distribution reinforcement of slab 6 Q bars
Overall depth of beam 500 mm
BCE-045 , :P.T.O'.
I
Widtli of the beam 250 mrn
"-'- Tensionr reinforcernent of beam 3- . ZS 0 HYSD ba,rs
Compression reinforcement of beam z - zs Q HYSDbars
...'- shear reinforcement 8 $ - .2 legged stirrups ,, . ,l
@ 200 c/c upto t.2, m,at, each end of the bearn anC:' in remaining part,, .nominal shear ,reinfo cement is
provided
Prepare- the'wsrking stnrctural drawing of the T-beam flooras follows :
(i) Plan of the floor ,
(ii) Longitudinal section of the T-beam
(iii) Longituiinal section of itt" floorX-section of the beams is seen
3. The size of an office,,floor,is 3,0,,m x 5,5 m effective.,Thefloor is idpsigned as ,a tw*way:reinforced RCC slab islrnpbsupported on all its for-r,:edges,with corners,prevent€d fromlifting up. The desjgn data is as below r , , .., ; , , .
Overall depth of the slap 165 pf.,:: i ,,: I i :.Reinforcement'along short span 10 0 HYSD bars
: . " , .Reinforcement ,along,long span 8 O HysD bars
such that the
,10
1 0
BCE-045
Prepare the working structural drawing for the floor as
follows :
(i) A section of the floor along short span
(ii) A section of the floor along long span
(iii) A plan of the floor showing torsional reinforcement
at corners in plan ,
I
I
BCE-045 1 ,000
: , : i ' i , i ; ' l ;
; , :
Diploma in Electrical and Mechanical
Term-End Examination
December, 2006
BEE-031 : ELECTRICAL TEGHNOLOGY' : :Time : 2 haurs Maximum Marks : 7A
Nofe : Answer Iiue questions in all. Question number 1is compulsory. Attempt an:y 'fou'r
from theremaining questions. Use of calculator is allowed.
1. (a) Select the correct answer from the given alternatives.' f 7x7 :7
(i) The number of equations required to solvenetwork by Mesh analysis is equal to the numberof(a) Loops
(b) Independent Loops(c) Mesh
. ,
(ii) Superposition theorem is applicable forcalculations of(a) Voltage
(b) Current
(c) Power
(d) Both (a) and (b)
BEE-031 P.T.O.
(iii) The ernf generated by a given DCdepends upon
(a) flux
( b ) s p e e d : , . , ,
(c) poles
(d) all of the above
(iv) The ,commutator segmefuts of a'
are insulated from each other by a
(a) Bakelite
: tb) Mica
(c) PVC
(d) Hard rubber , ;,,1.,,
(v) The flux involved in ernf equation
transfonner has
(a) rms value , " '
(b) average rualue
(c) total value
(d) maximum wlue
(vi) When the induction motor is standSill,
is
". .,1 .:
' 1 : ':,.
o f a
r i l r " l
rJE srtp
(a) Zero ,
(b) One
(c) Infinity
(d) Half
2,,,\BEE.O31
(vii) The effect of armature reaction in 3-phase
altemator at zeto power factor leading load is
(a) Magnetising
(b) Demagnetising
(c) Distortions
(d) No effect
(b) Write true or false for the following statements t 7x7:7
(i) Kirchhoff 's laws are not applicable in AC
circuits.
(ii) Principle of Superposition can be used for
power calculations.
(iii) The maxirnum efficiency of transforrner is
obtained at rated load.
ttures of DC generator and(iv) Constructional fee
motor are same.
( v ) I n D C s h u n t m o t o r t o r q u e i s p r o p o r t i o n a l t o
armature current.
(vi) Maximum torque is obtained in induction motor
( R " )when s l iP i s l t = *1 .---r-
t xz )
,(vii) synchronous motors are self starting.
2. (a) Differentiate between :
(il LooP and Mesh '
(ii) Lumped and Distributed Networks
BEE-,031 P.T.O.
(bl Calculate gurrent I in netwqrk shor*rn in Figure
I
4c l10&LV
Figure 7
3- (a) state and explain Thevenin,s theorem. T
(b) Calculate current in 5 o resistor in the network shown '' I
i , , . r , , , , . : : : . , . F i gU fe , , l . r . , , " , . , . , , . i ; ,
*' ta) Explain working of transfoinnel at Q.s,'pq4,er factoitagging road. Draw phasor diafrarn iiio Ariu*" *,winding resistances and rlactances are
' ,*ro
1 .
. I , ' , . . , r
j . .
BEE-031
(b) A 10 ,KVA 1000 v /2a0 V single phase transformer
winding delivers A.2 ampere current at 0'1 , Power
factor lagging. Calculate
(i) Iron loss
component of No Load Current' r ' ' 7
S. (a) Write the material and function of the following parts
of DC machines : 7
(i) Yoke
(ii) Armature :(iii) Commutator
l;' ;:: sh.e(vi) Brushes
(vii) Bearings
(b) write various speed control methods in DC motors'
Discuss flux control method of sFeed control'
6. (a) A wave wound DC generator has 4 poles of flux
0"5 Wb per pole, rotating at 1000 rpm. If armature
contains 7 2 conductors, then calculate
(i) emf per conductor
(ii) average emf induced 7
(b) Discuss constructional features and working of
synchronous generator. 7
BEE-031 5 ' P'T'O'
7. (a)
8- write short notes on any twoof the followirg, :
in theorem ' j
(b) DC motor. characteristics
(c) Efficiency of transformer , .f,," ,,,, * , . .\(d) Amature reaction in alterna&..
' ,o,.
{e) Synchronous condenser, . .
I : , , . , . , . : , . . , ; , r r ' l u , , : , , i
. . ;
(b)
" . 1
why does' a synchronous motm hn€ *l*, ftartihgs of starting.
Discuss :different applications of synchronous motorsand induction motors. 7
,f-t". - i '
:: ''{_
2x7=74. .
BEE-031 1,Sm
Diploma in Electrical and Mechanical
t--
December, 2006
BEE-041 : APPLIED ELECTRICALTEGHNOLOGY
Time : 2 hours Maximum Msrks : 70
Note : Qr,res tion no. L fs compulsory. Atternpt any fourquestions from the remaining questions. Use of
calculator is permitted.
l. (a) '
Select appropriate answer of the following questionsfrom the given options : 7x7
(i) Scott connection is used for conversion of a.c.power from(a) single phase to three phase
(b) two phase to three phase
(d) three phase to six phase
(ii) The rnotor used in electric ceiling fan is
motor
(b) repulsion motor
(c) hysteresis rnotor
(d) permanent capacitor single phase induction
motor
BEE-041 P.T.O,
(iii) Which is not a part of Nuclear Power Plant ?
(a), Nucl ear Reactor
(b) Condens€r
(c) ' Turbine
( d ) E I e c t r o p r e c i p i t a t o r . , ] . . , . ] . . '
Minimuq clearance of conductors from earth
for 66 kV line is
(a) 15 feei
(b) ZA feet
(c) 25 feet
(d) ' 35 feet
M For impedance relay under operqte{ coiidifion,
the impedance of faulty sectlon is .
C , , - b . -( a ) z < ;
b( c ) Z > Ta \
(d) /. = constant :i
. . . i '
' )
IS specification used for electrical
installations in hospitals is
(a) 304$ -"1966 "'.
(b) 7733; t975
(c) Igg4 - t957
(d), 694 - 1990
wiring
BEE-041
(vii)
fft-Tj:"oation
for 25 to 50 HP motors is
(b) 25 cm
(c) 60 cm
(d) 50 cm
(b) ,lndicate true or false for the following : 7x7
(i) Transformers are rated in kW.
(ii) Universal motors are used in lathe machine.
(iii) Thermal power plants have high efficiency.
(iv) Transposition of conductors reduces noise in
communication lines.
outlets' /(vii) Temperature rise test is a special test.
2, (a) Explain constructional features of a 3-phase
transformer.
(b) Two single phase transformers with equal turns have
impedance of (0'5 + j3) ohms and (0'6 + j1'5) ohms
t A A I r r t . n A h F l . . A I
f00 kW at 0.8 PF lagging. Calculate power shared
by each transformer. 7
3BEE-041 P.T.O.
3. (a)
(b)
Explain double field revolving
start a single phase induction
Explain working of
(i) Universal motor, and
(ii) Selsyns.
the-ory and methods tomotor.
necessary after lqylng
cable.
lines ? How is it calculated
and wind ? '
arc extinguishing in circuit
i . . ' r
I' t
'. 10'kV gpnerator fias; ' 24%
'A 3, phare $h@ , circuitCalc _te." {au!t, UVn aqd
7
7
. 74. " (a) Compare salient features of various types of povrrer
plants.
(b) A lighting load has 2!,100-watts larnps operated as
, . 10 lamps for 2 hours (6 pm,to 8 pm)
5 lamps for 2 hours (8 prn to 10 pm)
6 l a m p s f o r 2 h o u r s ( 1 0 p m t o 1 . 2 m i d n i g h t }1
Determine the conn€cted load, maximum dernand,
. dernand factor and daily load facfor.
5.' '
(a) , , Explain ,rmrior? tests w{eh are
and jointing of an underground
(b) What is sag in overhead' under influence of snow
- ,
6. (a) Discuss principles ofIoreakers.
, j
" , ,
. ,
(b) ' A, 3 phase 1000 "tlftlA,,
subtransient reactarlc€'','., ,occ$fs . at ,its terminals.
current.
BEE.O41
' 7
7 . (a) Explain the need of Earthing. Discuss various
methods of earthing. '7
(b) Draw circuit diagram of staircase wiring and how it is
different from a lamp controlled by two switches. 7
8. Write short notes on any two of the following : 7x2
(i) Foundation and Levelling of motors
(ii) Thermal Power Plant
(iii) Parallel operation of transformers
(iv) Merz-price protection of transformers
BEE-041 5 1,000
I
Diplorna in Electrical and MechanicalEngineering
Term-End Examination
December, 2006
BEE-042: ELECTRONICS
Time : 2 hours Mqximum Marks : 70
Note 3
(i) Question no. 1 is compufsory.
(ii) Attempt any four questions of the remoining
que.sfions numbered 2 to 8.
(iii) Use of calculator is permitted.
1. Select the correct answer from the given four alternatives.7 4 x 7 : 7 4
(i) In n-type semiconductor, the minority carriers are
(a) holes
(b) electrons
(c) both holes and electrons
(d) None of the above
BEE-042 P.T.O.
(ii) Zener diode is having temperature
coefficients.
(a) positive
(b) zero I
(c) negative
(d) None of the abbve
(iii) An inductor filter is used only with relatively
(a) low load currents
(b) high load currents
(c) high voltage
(d) low voltage
(iv) A diode PIV in,ra tralf : wave rectifier employing a,capacitor filter is
(a) V*
(b) 2 v_
(c) Jz vm
V(d) +J2
(v) Ultrasonic measurement is used to measure i,
(a) disturbance , , : ;i
(b) non-disturbance
(c) thickness l
' (d) None of the above
BEE-042 2 :
(vi) Which logic family is rnost irnmunized to noise ?
(a) CMOS
(b) ECL
(c) MOS
(d) TrL
(vii) CRT is also known as
(a) William tube
(b) Electron tube
(c) Crookes tube
(d) None of the above
(viii) In full wave rectifier, if the input frequency is 50 Hz,
the output frequencY is
(a) 50 Hz
(b) 100 Hz
(c) 200 Hz
(d) 25 Hz
(ix) Which wires are used to form the thermocouple to
avoid temperature gradient ?
(a) Homogeneous
(b) Non-homogeneous
(c) Both (a) and (b)
(d) None of the above
BEE.O42 P.T.O.
(x) Which is displacBment,sensing transducer ?i ,,,.,
(a) LVDT l ' ,r , i
(b) Variable capacitance
(c) Both (a) and (b) j
(d) None of the above
(xi). Fan-out of TTL logic is
(a) 40,
: , . i . .
i .
, ' ,
l
(b) 50: , : . , r |
. '(c) 70
( d ) 1 0 ' , i , ' , ' . i
(xii) In combinational circuit, output depends, on :
(a) clock pulse
(b) memory .
(c) input
(d) order of input
(xiii) Input impedance of CRO is about r . ; . rr . , ,(a) 1 Kcl
( b ) l M c ) i L : ' ; ' '
i ' ( c ) . ' L 0 0 O
' 1 , I ; ' ; ; . i : r , , : 1 . q ; 1 ; i r , r , r , i , :
(d) 10 Ksl
(xiv) In which region does transistor:act, ,ds:'# s{rritch,?( a ) Cu t -o f f 1 , i , , r . j ! : , i : r - . 1 " " , , , . , , , , . , ,
(b ) Sa tu ra t i on , , , ; , : : , , , , i , , j , ; , , ,(c) Both (a) and (b)
i(d) Act ive
i " ' : i ' i i i : ! i r " ' '
BEE-042
2. (a) What :happens' to : the depletion region undercondition of forward biasing and reverse biasing ofPN junction ?
(b) What is zener diode ? Explain the VI characteristicsof, zener diode.
3. (a) An a.c. supply of 230 V is applied to the primary ofthe transformer. The transformer has turn ratio ofL2 : 1, Neglect the 'diode resistance and transformerresistance. Calculate (i) Vr. (ii) PIV. 6
(b) Draw and explain input and output character.istics ofNPN transistor in CE configuration. In which regionis the collector dissipation maximum ? B
4. (a) Explain with a neat sketch, the operation of PNPtransistor in active region.
(b) With a block diagram, explain functional elements ofgeneralised measuring system.
5. (a) What is the function of actuator ? Classify theactuator with one exarnple of each type.
(b) Draw schematic diagram of LVDT and explainbriefly its characteristics.
6. (a) Explain AND and OR gates with switching circuitanalogy and truth table. I
(b) Write down the important specifications of TTL logicfamily. 6
BE,E-042 P.T,O.
7 .
7
4x3*.*':
8 .
(a)' .,With'':n€at 'Ishe{ch; eXplain,' the "Cgn$truction andi .',worltiyrgrofICRT (Gathode Ray,Tube)., i, j
(b) Draw and explain the block diagram of TV I'ieceiue,
; 4 and -TV transrnitter., i, , )' : "
;
Write short notes on any Iour of the following :
(a) ''tS**i'cbnductin$ rnateri-l 't '-
"' i"' : ' : ' ,
, ' :
: ' ' , : ) ' . ' . . 1 . ' . ' ' ' i ' : l i ' '
6BEE.O42
DIPLOMA IN COMPUTER INTEGRATEDMANUFACTURTNG (DCIM)
Terrn-End Examination
December, 2006
BME-001 : ENGINEERTNG MATHEMATtcs-l
Time : 3 hours Maximum Marks : 70
Nofe : All questions ere cowrpulsory. LJse of calculatoris allowed.
1. Answer any four of the following : 4xS=20(a) Evaluate any one of the folrowing :
(i) Liq 't"#-',';t tx + 0 x z - g z
x) :
x)
5
5
5
a point of removablefunction to remove the
Lim x -..-- cos(sin-1
(i i ) *** 1 tan(sin- lJz
l x + 3 , x <I
L " l f k ) : { 7 , r =I1 2 " - 2 , x >
S h o w t h a t x = 5 i s
discontinuity. Redefine thediscontinuity.
(b)
BME-OO1 , , P . T . O .
(c) Answer any ons of the followtng :
i-( i ) I f J t - * ' + l L - v z = x * y , & e n P r P w
that gY- =ox
.()(ii) Find + at 0 Ea +, when
: d x z -
x:0 + s in 0, y E 1 ' ' - gg5 '$.
An*wer any om*'of the follorui'ng : ''. : .
(i) Erualwte-t^-
, , . f , ' - . . & , t ' , . ; ' : " " " jl -Jf f i
(ii) Evaluate
3 r TT { x ' + 1 r _ _t - C D (J x
f -.- y'
ilp
t
, 2
(e) Solve any Grrre of the following :
td)
( r )( i ) l l +ev l dn +
t )( i i l x # - y = =
2
*2 +v2
B"ildE-001
(f) Solve any one of the following :
(i) Determine the intervals where
f(x) = sin x cos x' 0
is strictly increasing or strictly d'eueasing.
(ii) I,f u : f(x, y) and x =' r cos 0, y = r sin 0,
prove tha,tr r O
/a , r \z (au\z /zu\z 1(ar \zl - l + l - l = l - l + - l - lt a * l
' I a v l - [ a / , 2 [ a e l
.3x5=I52. Answer any thtee of the following :
(a) Let a, b, c be three non-zero vectors, no two of
which are collinear. If the vector a + 2b is collinear
with c and b + 3c is collinear with o, then show that
o + 2b + 6c = 0.
(b) Find the vector c which is directed along the internal'
bisector of the angle between the vectors
;# ; , :1 =J} : - b= .2 t -3+ z iand
(c) ;':"il:T l?;; i H" :n;;,,1'lTi" 2,2 y1rrnoves a particle in space frorn (0,0,0) to (L, 1, 1)
t t . ? . t
is independent of :the path. Find the work done.
(d) Verify Green's theorern for
t & 2 + x y ) d x + ( * 2 + y ' \ a vawhere C is the boundary of the square x = t 1,
Y : t 1 .
BME-OO1 P.T.O.
(e) Find curl A where
A: *yrzi - vz;i + 1y * ,\i
3. Answer any fiue of the following': 5x4=20
(a) Find the product of two matrices
lz - r Bl l - 13 -1 -81l - - l l - -l r D I { | z I1 1 3 - l l a n d l - 7 4 5 lt t t tlz -z sJ L- t z T l ' l
J. . . I
and solve the system of linear'equations
2 x - y + 3 z = 2
X + 3y , - Z = 4 i ' r
' ' lv -* 2y + 5z = 3.
. . . i t : . r : - t
a , : t ' ,
(b) Find the iank of the matrix',
, i
t - - ll r z 1 ? lt l
l l l :l z 1 3 z )
;(c)Veri iy.Cayley-Harni | ton.Theorgmforthematr ix
'' ) , ,: l- 2 1 -1-| ;
t l| | , ',l - r 0 1 lt l' [--r ' 1
4,BME-OOX
Show that the following matrix is a Hermitianmatrix :
t 3 7-4i -z+si lt lI T + 4 i - z 3 + i It lL - z * s i B - i 4 J
Find all the'roots of the equation
l *+1 t" L2 ll , ll l , * * * 2 1 l = ol ' l
l ^ ' 1 x+r , l
where 13 : 1, I # 1.
Find a,matrix K such that AKB : C where
l - 1 4 l. | |A = l _ z 3 l , B l ^ l ,
I I f o l - l jL 1 - 2 1
l - 8 6 - 6 ]I
c : l u - 1 1 lt l[-+ o oJ
Find values of l, and p $o that
[]. cos 0 - sin 0l| | is an orthogonal matrix.
L s i n 0 p c o s 0 J
(d)
(e)
(f)
(g)
P:T.O,.BME-OO1
(h) , Prove that
t log,, y log* z
hn* t logoz
l ogrx logry 1
where x, y, z are positive ,real nurnbers..
4. Answer any &,npe of the following : 3xS*IS
(a) Three letters are written to different persons, and
addres$es on three , -grruelopes are also ttffit,tsn.
Without looking at the addresses, find tr,re wobqMl&ythat the letters go into the nght envelopes.
" ; , . . ' d ( '
, . ' . , ' t , , " , : , , . , , t , ' . ' l : : , ' , ' '
(b) trn a manufacturing process, a paclmgirvg rnachineproduces,6Va defective packages. Find :the mean arld
the standard deviation of the number of defectirrepackages in a random sample of 50 pack4es.
(c) Assume that the probability of a workar &r a {lctory
year is #
Using appropriate distribution, ,calculate trre
probability that in a factory employing 400 workers,
there will be at least two, sucbr accideuts in
a yea,r
resulting in iniury.
= 0\
BME.CIO1
(d) Three mac-hines A, B and C manufacture respectively
0'4, 0'5 and 0'1 of the total production. The
percentage of defective items produced by A, B and
C is 2, 4 and 1 respectively. An item is chosen at
random and found to be defective. Find the probability
that it came frorn machine A.
A stenographer claims that she can take dictation at
the rate of 100 words per minute. Can we reiect her
claim on the basis of 100 trials in which she
demonstrated a mean of 96 words with standard
deviation of 16 words ?
(e)
B'ME-001 1,000
DIPLOMA IN COMPUTER INTEGRATEDMANUFACTURING (DCIM)
Term-End Examination
December, 2006I
BME.OO2 : GOMPUTER AIDED DESIGN
Time : 3 hours Maximum Marks : 70
Note : Attempt any seuen questions. (Jse of calculator is
allowed. :
l. what is the resolution of an image ? compute a resolution
of a 3 x 3 inch image that has 1b36 x 1536 pixels. 5+5
Z. Give the brief description of Projection with suitable sketch'
Briefly describe Parallel Projections' 70
3. Enlist at least eight techniques for removing hidden lines
and surfaces. Describe any one of them. 5+5
4. Draw the RGB colour cube and briefly describe RGB
, , 4 + 6model.
s. Describe the properties of Bezrer curve with suitable1,0examples.
P.T .O.BME-OO2
6- A cubic Bezier curve is defined by the point (2, zl, (4,, 6t,(8, 8) and (L2, 2). Calculate the co-ordinates of theparametric mid-point of this curve and find out its gradient.
L ASketch this curve.
7 ' For a B-spline curve, verify the following propositions withconvincing arguments :N. (u) is a degree p polynomial
I , P
r ' - g - - - r t ' v ' J " v r r . r f . .
For all i, p and u, Ni, o
(u) is non-negative. l0
8. Enlist various methods for representing the solids. Brieflydescrib.e the Boundary representation method (b-rep) withits advanfages and disadvantages.
g, Explain the developments in CAD/CAM tlpt dgmandexchange standards.
"" ": " " LA
10. Write short notes on : SxZ(a) 3-dimensional rotation
(b) punctions of geometrical modelling in variousfunctional areas
BME-OO2 ,. 1,000
-I ByE-003 |
DIPLOMA IN COMPUTER INTEGRATEDMANUFACTURING (DCIM)
Term-End Examination
December, hOOG
BME-003 : MANUFACTURINGTECHNOLOGY
Time : 3 hours Maximum Mqrks : 70
Nofe : Answer any seuen of the following ques.tions.
Ques tion number 1 is compulsory, Attempt six
questions from the remaining questions. Marks of
questions qre indicated,
1. Choose the correct answer from the given alternatives :v
7x70:70I
(i) Electric furnace can usually operate upto a
temperature of
(a) 1000" C
(b) 1250' c
(c) 1700' C
(d) 2200" c
(e) None of the above
BME-003 1 P.T.O.
(ii) Generally for melting of cast iron, electric fumaces
are not used because
(a) Calt iron is ih }J1e form of broku: pieccs n ' '
(b) Cast iroq .requires
hlgh ternperature for heating
(c) The rate of heating required for meltfs castiron canhot.be provided by :electric fumaces,
(d) It is expensive to use electricity for rnelting of
cast iron
(e) None of the ,above, : i : l
The disadvantage in using wood as the material forpattem making is. ' : ;
(a) Its low cost' :
{b} ' Its different strength along the gralns and acrossthe grains
, ] . , r r { . r
{c) 'lt
ge6'warped when not stoied'prop*ry':i .' " j'
(d) It is lighter thin the metal to be cast
(e) None of the above
The
(a)
(b)
(c)
(d)
(e)
drawback with metallic pattem is
Excessive weight
Expensive
Difficult to shape
All of the above
None of the above
(iii)
(iv)
BME-OO3
(v) Permeability of sand decreases
(a) ComPactness increases
(b) Moisture content increases
(c) Bonding content increases
(d) All of the above
(e) None of the above
(vi) In arc welding, eyes need to be protecte'c against
(a) Intense glare
(b) SParks
(c) Infra-red raYs
(d) Ultra-violet raYS
(e) Infra-red rays and Ultra-violet rays
(vii) which of the following is preferred for welding
non-ferrous metals bY arc welding ?
(a) A.C. low frequencY
(b) A.C. high frequencY
(c) D.C.
(d) All of the above
(e) None of the above
(viii) Following gases a1e used in Tungsten Inert
Welding :
(a) HYdrogen and OxYgen
(b) COrand Hz
(c) Argon and Neon
(d) Helium and OxYgen
(e) Argon and Helium
BME-003 3
of
Gas
P.T.O.
(ix) In order to facilitate the withdraural of pattem
(a) Pattem is made smooth
(u) water is applied on pattem surface
(c) Allowances are provided on pattem
(d) Draft is provided on pattem
(e) withdrawing facilities are provided ''
(x) Cores are used to ' '
:(a) Make desired recess in castings
(b) Strengthen mouiding sand
(c) Support loose pieces 'r
(d) Remove pattern easily
(e) None of the above
Explain principles of operationcutting.
write the functions of the preheat flamescutting operation,
What is flame gouging ?
Write the factors affecting distortion ih thaweldments.
'Differentiate between intermittent" weldingcontinuous welding.
Why does porosity occur ?
2. (a)
(b)
(c) '
BME-OO3
of oxy fuel
5
in the
3
2(c)' : .
3' (a)
(b)
3
2
4. (a)
(c)
7. (a)
Write the factors which need to be consid ered while
selecting the type of current for Shielded Metal Arc
Welding.
Write the applications of Gas Metal Afc Welding.
Write two stages in Oxy-fuel Gas Welding
combustion.
How can the cost per component while machining
be reduced ? Explain with the help of suitable figure.
How is machinability related to tool life ?
Write the variables that affect the economies of a
machining operation.
Calculate the total machining time required to
machine a shaft of 500 mm length and 100 mm dia
rotating at 300 revolutions per minute. The final
diameter desired is 98'0 mm. The maximum
permitted depth of cut is 0'50 mm. The feed given
in the present case is 0'05 mm/rev. 5
Explain longitudinal feed, cross feed and angula r feed
in turning operation.
Define boring operation.
Differentiate between orthogonal and oblique cutting.
What is the utility of orthogonal cutting ? 5
Write the significant characteristics of H.S.S. 3
Differentiate between up-milling and down-milling . 2
5
3(b)
(c)
5
3
(b)
3
2
(b)
(c)
BME.OO3 P.T.O.
8. (a) What is sheet metal fornring ? Describe in,brief the
various sheet metal forming processes.
(b) Discuss the significance of cleapn'ce prevrded
between punch and die in a shearing proces$'.',
(c) Write the relationship between" shear' strength and
tensile strength of sheet metal. ,
;(a) What is forging of metals ? How are the:Isarioufi'
forging processes classifted ?
(b) Write three common forging defects d*$: withpossible causes.
(c) Differentiate between drawing and extrusion. i
10. (a) Define Hooke's law. Establish relationship ,betrpeen
lateral strain and longitudinal ,strain. i .
h) Write the three elastic moduli. How are these three
moduli related ?
(c) Differentiate between hot working and cold working.
1,. -
,-c
, . .
5
,.3
' '2 '
9.
3
2
, 5
: ,s^ .
2
6- ;' . '
*lw0I
BME-OO3
DIPLOMA IN COMPUTER INTEGRATEDIT,IAhIUFACTURING (DCIM)
Term-End Examination
December, 2006
BME-004 : CNG TECHNOLOGY
Time : 3 hours Maximum Msrks : 70
Note : Question no. 10 is compulsory. Attempt six
:::; Hi,z"'':::;:^ the remainins At t questio ns
L. (a) What is numerical control ? trxplain the concept ofNC and CNC for a machine tool. 2+4
' (b) Discuss the advantages and disadvantages of NC andgive a list of various lypes of CNC machines existing
2. (a) How do you designate the axes of the CN-emachine ? Draw the orientation of axes with respectto CNC drilling and CNC milling machines 3+2
(b) Discuss the important functions of machine controlunit of a CNC machine. 5
BME-OO4 P.T.O.
(c). t
5. {a}
3. (a)
(b)
4. (a)
(b)
BME,OO4
Explain the typical characteristics and constructional
details of CNC machining centres.
Discuss in-process gauging ?nd measuring systems
used in CNC machine.
What are the various NC words that exist in a typical
3programming block ? Explain.
Explain how the CNC systems are classified based
on programming. 3a
What is meant by parametric programming ? 4
Discuss the general structure of a computer aided .
part programming for machining of a typical part.
Explain the various commands used and their order
in it.
(b) Write three types of geometric statements (fu per
APT) for defining each of the following elements i 3+3
(i) PLANE
(ii) CTRCLE
Describe the principle of working of a stepper
motor a drive for NC system. 4
Discuss the role of feedback devices in CNC
machines. Explain the following feedbackr''devices : 3+3
(i) Encoders
(iil Inductoryn
7 . (a) What is DNC ? Classify DNC systems and explain
where DNC systems are applicable 2+3
(b) Explain important components of DNC and how the
information is exchanged in a DNC system . 2+3
8. (a) Classify various manufacturing systems based on
product variety and volume and discuss the benefits
of each of thern. 5
(b) State and explain the components of a FMS and
discuss the various flexibilities associated with it. 5
g. tui Classify automated material handling system used in
FMS and explain them . 5
(b) Explain the tool management system used in FMS. 5
lO. The metric part illustrated in Figure 1 is to be machined.
Write a CNC program to carry out the operations as
outlined in the data table.
Tool Operation ToolingSpeed(rpm)
Feed(mm/min)
1Rough insidecontour 0'25 full
Q6-mm roughingend mill
2100 120
2 Finish inside
contour as required Q4-mm end mill 2600 100
3Rough outsidecontour 0'25 full
06-mm roughingend mill
2100 r20
4Finish inside
contour as required Q4-mm end mill 2600 100
Notes : 1. Set X0 Y0 at the lower left-hand corner.
2. Zo is the top of the Part' 70
BME-004 3 P'T'O'
Reference point(machine home)
+{i)
5 0 tI
I
Reference point
{machine home}fr.
@' ' r r \ \I ' ra
\
Operations I and 2
Tool change position
0perations 3 and {
2fr permittedt,
ta
* . 1 -
J r'* oe
-r
!&
' l
.r- t\ ' - ^ 2
| - r \ - ,
I 8TYPI Y' - r r - r t - - - - J _ _ -
@@
- . - - ?
I : .r ' Ig
l '#Tl"
BME-OO4 1,O00
DIPLOMA IN COMPUTER INTEGRATEDMAhTFACTURTNG (DCrM)
Term-End Examination
December, 2006
B M E'oos *ii $ll#.l-lilF"
RArE D
Time : 3 hours Maximum Marks : 70
Nofe : Answer any seuen questions. All quesfions carryequql marks. Msrks fo, sub-diuisions of quesfionsar€ a,s indicated. IJse of calculator is allowed.
| |
What do you understand by Computer IntegratedManufacturing ? Clearly describe the potential benefits ofComputer Integrated Manufacturing. 10
Describe the concept of Computer Aided Manufacturing.Explain briefly the various functions of CAIvl. 10
Define the term Inspection. How do you classify theinspection systems ? Clearly describe the various stepsinvolved in inspection procedure. 10
What is an automated guided vehicle system ? Brieflyexplain the different types of automated guifled vehiclesystems. 10
1 .
2 .
3.
4 .
BME-OOs P.T.O.
5.
6.
j
(a) Describe the CNC machine operation and part
programme.
(b) Explain the different types of CNC drive systems. 5+5
Discuss the following terrns : 5+5
(a) Part family formation
(b) Production flow analysis
Describe all the important elements of '"the
simulation with some suitable examples.
8. Define process planning. Describe various approaches to jprocess planning. 7A
lo.
What is sensor ? What are the two types of sensors andhow do they differ from each other ? 10
Product A consists of two units of sub-assembly B, three
units of C, and one unit D, B is cornposed of four units ofE and three units of F. C is made of two units of H andthree units of D. H is made of five units of E and two unitsof G.
n l F(i) Construct Product Structure Tree.
(ii) To produce 75 units of A, determine the numbers of
units of B, C, D, E, F, G and H required. : 5+5
7 . discrete event
1 0
9.
1' ,000' ,BME.OO5
DIPTOIIIA IN COFyTPUTER INTEGRATEDITFACTURTNG (DCrM)
Term-End Examination
December, 2006
BME-0OG : MECHATRO'NICS
Time : 3 hours Maximum Marks : 70
Note : ' Answer a'ny s€uefr;, questions. Use of calculator issllowed.
- | | |
1. (a) A 6-bit D/A converter gives an output voltage of
6'852 volts for an input of 010111. What is the step
size, the full range voltage and the percentage
resolution ?
(b) A typi cal AD converter has 12-bit resolution ,and a
full range of 12 volts. What is the present resolution
and voltage resolution of this device ? 5+5
2. (a) What is the main aduantage of a capacitive proximity
switch over the inductive proximity switch ?
(b) ' Describe four different sensing modes for
photoelectric sensors. 5+5
BME-OO6 P.T.O.
3. (a)
5'." (ui
(b)
6. (a)
(b)
Explain the working of
a sketch. What are
disadr,rantages ?
(b) Describe one method
scrgw.
a ball screw with the help of
its relative advantages and: : , , .
I l
4. (a) What are the three ways of controlling the actuator
speed by means of a flow contlol vglve 7 What are, : . !
'
- , : , ,
. , , , i , 1
their relative advantages and disadvantages ?
: (b) ' What will be percentage increase in the.pressure drsp
acrosq a flow control ,valve, if the flow is doubled ? '6*$
. . , : , , . :
the workirrg prinqiple of ,a Timer.
, * ' , '
" l
backlash in a ball
5+5
4f - '
' . i i , ' .
output devices : in , ?
. ' . ; I
: - ' - i b : ' ' t '
"q '7k rh" " " ' -
Describe armature speed control of a DC motor,
A DC motor takes an aimature current of 1"20A at. i i i
' . I
360 V. The resistance of arrnature circuit is 0'4 (1.l i . . . . ,
The machine has six poles and the almature is lap
connected with 736 conductors. The flux per pole is' 0,7 Wb. Calculate , : : '., ;': ; ' ,, :
' ' , 1 i 1 " ,
' t h g s p e e d , ' a r t d ' , ' , ' , r ' ' , I ' l i ' : ' u r : ' : ' . ,
, ' :(ii) the gross torque developed by the system. 3+7
Explain
Dgscribe ,some, electrical
mechatronic system.
BME-OO6
Z . (a) Define a microprocessor. What is the difference
between a microProcessor and a CPU ?
(b) Draw and explain PLC structure and write the
advantages of PLC over microcomputer. 5+5
8. (a) Define the term process control. Draw and explain
the block diagram of a process control system'
(b) :::'il"il:,-:;:::,:::""n
time' stabiritv' sensitivitv s+S
s (a) ::'J::::?T::-#,r#:ff:l
svstems Describe
(b) Explain the working principle of a fly ball governor
with the aid of block diagram. 5+5
( s l10- (a) Evaluate 11
t#l
- ( 1 I(b) Evaluate t-1 {pf ' 5+5
L(t - 2) (s + 4\)
BME-OO6 1,000
L , i !
DIPLOMA IN COMPUTER INTEGRATEDMAhTFACTURING (DCIM)
Term-End Examination
December, 2006
BME-007 : OUALITY ENGINEERING
Time : 3 hours Maximum Mqrks : 70
Nofe ' li,rJIJO,
any seuen questions. Use of catculator is
1. (a) What is quality audit ? Name and describe the
various types of quality audits.
(b) List down five major benefits of implementing
2x5=70rso 9000.
2. (a) What are the roles of management and suppliers to
ensure quality of the product ?
(b) How does modern quality management differ from
the "inspection" approach ? 2x5:7a
3. (a) Define the terms :
(i) Failure rate, and
(ii) Reliability
How will these parameters vary with time in a
typical failure-data analysis ?
BME-OO7 P.T.O.
(b) " Calculate the system reliability for the unitsconnected as shown in Figure 1.
' ' ' F i g u r e t ' ' ' , ' '
4:' {a}' '\ that' are the Ley 'concepts tttat'"uridefhne'' th'e'"'' "
construction and interpretation of control charts ?
(b) Determine availability for each of these cases :
/i) MTBF : 50 days, averag e repair time = 5 days\
(ii) MTBF : 400 hours, average repair time :\,t hours. 2x5=1.Q
:5. (a) What,i! the difference between,price of confor*uncg
examples.
(b) Explain what you understand by the term "'tTorulQuality Management", paying particular attention tothe following terms :
quality, supplier-custorner interfaces, and processr.t
, i '
_
' '
BMf-gg7
6- (a)
(b)
8. (a)
BME-OO7
(b)
Define Customer,. Explain different types of customers
with suitable examples. :
A daily sample of 30 items was taken over a period
of 74 days in order to establish attributes control
limits. If 27 defectives were found, what should be
the LCL and UCL ? 2x5:70p p
(a) ' Discuss the various types of quality costs. What kind
of costs shor"rld a firm be more concerned with ?
A component has MTBF =' 100 hours and
MTTR : 20 hours with both failure and repair
distributions exponential. Find the availability and
unavailability of the component after a long time.2x5=70
Discuss the rneaning of
(i) Cost of failure
(ii) Cost of appraisal, and
(iii) Cost of prevention.
Explain why should cost of prevention increase if theother two reduce.
Discuss the procedure of selection of a supplier by acompany. What are the three approaches toascertain the capability of vendor to manufacture therequired part ? 2x5:7A
(b)
P.T.O.
9. (a)
I O. Write short notes (any fiue\ :
(a) ISO 14000
(b) Matrix Diagram
}rrve(c) Bath Tub Curve
(d) Informal Benchmarking
(e) Pareto analysis
(f) Quality Functions Deployment (Qfn1.'
(b)
What is the significance of Risk Priority Number
(RPN) 7 What is the follow-up action after RPN is
determined ? ' ,
The total number of failures is 110. The total
number of maintenance hours used to correct 110
failures is 658. Calculate the maintainability for
1, 4 and 12 hours. 2x5=1,4
5x2=1,0
BME-OO7 1l ,000
ADVANCED DIPLOMA IN COMPUTERINTEGRATED MAhTFACTURING (ADCIM)
Term-End Examination
December, 2006r*,
BME-008 : MACHINING TECHNOLOGY
Time : 3 hours Maximum Marks : 70
Note : Attempt any fiue questions.
1. Differentiate between 'orthogonall and 'oblique' cutting.
Draw Merchant's force circle diagram showing different
forces acting on tool, chip and 'work
system. State all
assumptions made in deducing the Merchant's equation.
Further, from the diagram, derive the expressions for
(a) shearing force on the shear plane
(b) friction force on the tool face. 74
2. (a) What are different rnethods used to experimentally
estimate the tool-chip interface temperature in metal
cutting ? Describe any two briefly.
(b) Name different variables affecting tool life. What are
the desirable properties of a cutting tool material ?
What is 'cermet' ? Is it better in comparison to its
competitive tool material - cemented carbide ?
BME-OO8 P.T.O.
s. How do you specify a grinding wheel ? Explain the
individual elements of the information given ' in the
speciflcationr What are 'dressif,g', ltruing' and balarlcing of
a grinding wheel ?
Obtain an expression to calculate chip thickness and chip
length for the following :
(i) Surface grindihg
(ii) External cylindrical grinding
Give three applications of centreless grinding.
How t 'honing' different from 'lapping' ?
14
14
5. What is 'surface integrityl ? How is it classified ? Explain
each under different category. How is 'surface roughness'
diffbrent from 'surface war,tiness'' "?' Hout 'is ' surfate
roughness measurcd and represgnted ? 14n
, '
6. (a) What is owear' ? Describe different types of wear.
(b) Classify the surface improvement techniques, andr - e
explain each one of them in brtef, .
7. (a) Classify unconventional machining procesffis, on th€
basis of the type.,of energy €mployed. Also, otate the
mechanisrn of material removal, tools and energy
sources used
(b) Draw a sketch showing the effeqt of carrier gas
: recommended to machine ductile materials ?
4.
BME-OO8
8. (a) Sketch the effects of the following parameters on
MRR during EDM using RC circuit :
(i) Resistance
(ii) Current density
(iii) Pulse energy
(iv) Capacitance
What are the advantages, limitations and applications
of ECM ? Derive an equation for the maximum
permissible feed rate during ECM. How do you
calculate the change in temperature of the electrolyte'
for a given feed rate of the tool ?
,8
(b)
BME-OO8 1,000
ADVANCED DIPLOMA IN COMPUTERINTEGBATED MAhTFACTURING (ADCIM)
Telm-End Examination
December, 2006
BME.OO9 : COMPUTER PROGNATVIMINGAND APPLICATION
Time : 3 hours Maximum Marks : 70
Note : Answer sny fiae of the following questions. (Jse
of calculator is allowed,
l. (a) Consider the following system of equations :
4 x - y + z = 7
4 x - 8 y + z : r - 2 1
- 2 x + y + 5 z : 1 5
Perform only four iterations of Jacobi iteration and
Gauss - Seidel iteration method for solving the
equatiorfs. Assume, to start with
(xo, go, to) = (1, 2, 2l'.
1 P.T:O.BME-OOg
, , t
q) Solve'the following system of linear equations wiftCrout's or Cholesky's LU decomposition rnethod :
2x, 2x^ + 5x^ = 6---t -"2
2x, -+ 3*, + *3 = 13I -
: 7+7- x 1 + 4 * , 4 * r : 3
2 . (a )App lyb i sec t i onmethod to f i ndanapprox ima t ion tothe positive root of the equation
2x
rounded off to three decimal places .'
(b) Tha equation 2x3 + lxz + 5x' + 3, = 0, has a ruot . ,,,.t "
in the interval [- 2, - tl.starting with xO = ; 2-0and x, = - 1'0 as initial approxirnations; 'perfomrj
tour iterations of the Regula - Falsi rnethod. , 7+7, , r i
' ; . : , . , l ' : . .
3. (a} Do three iterations of the Newtsel ; Raphson.method to solve the equation
*3 + .x 6 = 0
starting with *0 = 1 and *1 : 2.
(b) Find Lagrange's interpolating pglynornial forthe' ;,fol lowing.data'Alsoobtainthevalueoff(2},ugnsthe.polynonrial.
x 0 1 4 5
f(x) 8 1 1 68 r23.
7+7
BME{09
4. A rod is rotating in a plane about one of its ends. If the
following table gives the angle 0 radians through which the
rod has tumed for different rnlues of time t seconds, find
its angular velocity and angular acceleration when t : 0'6
seconds. :
t seconds : 0 .0 0,2 0.4 0 .6 0 .8 1 . 0 L . 2
0 radians : 0 .0 0 . 1 2 a.49 T . T 22.A2 3 .2 4.67
14
S. (a) Differentiate between a public member and a private
member of a class.
(b) Define destructor. What name must a destructor
have ?
(c) What is a Null object ? Also, give an example.
(d) Differentiate between a closs and a struct '
(e) State whether the given statements are True/False.
Also give justification of your answer'
(i) We can create an object of an abstract class'
(ii) Virtual member functions are resolved statically
(at run time).
(f) What is void pointer ? Give an example of void
pointer.
(g) Write a declaration for each of the following :
(i) An array of 8 floats
(ii) An array of 8 pointers to float 7x2:74
BME-009 3 P'T'O'
(6. (a) If p has the value of 7 and max has the mlue g,
what will be the value of the rariable max after thefollowing piece of C]+ is executed ? :
if (p < max)
max : p;
What is wrong in the following
(i) cin
( i i ) i f x < y m i n = r
else min = g;
code :(b)
(c)
i .
, t , '. :
' i ' a l . , . t , : ^ i
of free size .'witht . , . ; ; . u , _ 1 .
77, 40, 12071. ' ,Define an integer array spaceconstant values assigned as L6, Z,
(d) How do we access the rnemoryvariable ?
(e) Explain the difference betweeh theuses of the reference operator & :
i n t & f : c r r f ;
P = & n ; . .,.
-,j .: .
(ff,,' what is pvrong with the following cde r ' ,
i n t * P = & 4 4 ; : ' : i
(g) Fill
(i)
(ii)
in the blanks :
A pointer is a
With pointers, the & syrnbl
+ operator'and the .
operator.
4
' . '
isr,'
{b^.
mlled' tfie'
called the
,, , Txhrld
BME-OOg
7 . (a) write a c** programme to determine the area of a
triangle using the formula
area = Jits - a) (s - b) (s - c)
8. (a)
w h e r e s : ( a + b + c l / z .
(i) what are Inline functions ? Differentiate
betw een Inline functions and Macros.
(ii) What is friend function ?
(iii) What is polymorphism in object-oriented
Programming ? Explain different types of
polymorphism with the help of an example.
A particle which was initially at rest is moving with
an acceleration'"a". The distance travelled by the
particle at time 3 3t' ' is given by the formula
1 - 2 F r r . r - l I I t -s :
Z at2. The velocity v = at. Write a C**
programme to read a and t and print t, a' v and s'
(b) (i) What are macros ? Write a macro to calculate
the simple interest using the following formula :
simple Interest : Principal x Rate x Time
100
(b)3
7
(ii) What is Dynamic memory
operator "new" can be
dynamic memory ?
Differentiate between
"do-while" loop.
? Explain how the
used to allocate
"while-do" and7
1,000BME.OOg
(iii)
ADVANCED DIPLOMA IN COMPUTERINTEGRATED MAhTFACTURTNG (AOCTM)
Term-End Examination
December, 2006
BME-010 : TOOL ENGINEERING ANDMANAGEMENT
Time : 3 hours Mqximum Marks : 70
Note t Answer sny Eeuen
sllowed, Marks fo,os indicated.
questions. Use of calculator is
subdiuisions of questions ore
1. (a)
2. (a)
(b)
How do you specify a single point cutting tool ?Differentiate between brazed, tip tool and longindexable insert tool.
A hole of 30 mm diameter and 55 mm depth is to
be drilled in a mild steel component. The cuttingspeed can be taken as 70 m,/min and the ieed rate
as 0'35 mm/rev. Calculate the machining time. 5+5
Differentiate between 'up milling' and 'down milling'.
What are the various types of milling operations ?
Explain with the aid of neat sketch any one of them.
BME-O1O P.T.O.
(b) An 80 mm diameter cutter having 6 teeth cuts steel
at 18 m,/min. The depth of cut is taken as 3 mm
and the table feed rate is 150 mm/min. Find,the
3. (a)
(b)
4- (a)
(b)
5. (a)
(b)
6. (a)
(b)
7. (a)
(b)
What are various
foundry ? Describe.
length of the chip in up-milling,
List various types of jigs with examples.
neat sketch the principle of indexing jig.
List the different types of fixtures.
working of any milling fixture,
)
Explain wi*r.,
Explain the
, , , , , 5 + 5 * I O
Spes :t
hand tools Uqed t"
Fxplain briefly the principle of die design,
Explain briefly the operation in sheet metal working,
How do you classify moulding machines
. , . : : : r ' 1 : . 0 , ,
' : . . t , a i r t . i a ! l
? Describe
5+,5*70any one of them.n :: ' .
What is the purpose of laying out the workp iece ?
Explain layout tools with neat sketches. '
What are different 'layout acc€ssoriesl ? Describe
5+5*1.0them briefly,
Exp la in lay ingoutcent reho le . , , , . : i * , ;: -
Explain the method to check the accurary of tht,
centre layout. J
tsME-O10
8. (a) What is test and proof circle ? Where and how do
you use these circles ?
(b) What arethe various causes of accident ? Discuss the
various safety norms in the industry . 5+5=70
g. (a) What do you understand by Web-based Virtual
Machine Tool operation ? Explain in brief , the
]JJ|I,:" (il"il;l-based virtuar Machine roor
(b) What are the functions and requirements of spindle ?5+5=7A
lO. (a) What are the various components of tool handling
and management system ?
(b) Explain various tool storage policies in detail.5+5:70
BME-01 O 3 1,000
ADVANCED DIPLOMA IN COMPUTERINTEGRATED II{ANUFACTURING (ADCIM)
. ,' December; 2006
BME-011 :' COMPUTER AIDED PROCESSPLANNING
Time : 3 hours Maximum Marks : 70
Nofe i Attempt any five questions.t r
- _ - _ _ = = _ _ -
I
1. '(a) When' would you advocate using each of the
following approaches to process planning ?
Variant, generative or manual.
Give reasons to support your answer. 5
(b) Describe the rnajor components in generative and
variant process planning systems. 6
rg CAPP systems. 3
2. (a) How would you ensure that a tool has failed ? 2
(b) A better surface finish is desired on a workpiece.
Recommend three steps, to improVe the " Surface,
without iinvolving'a tbof change. 3
BME-01 1 P.T.O.
(c) Machining a steel bar longitudinally on a lathe witha depth of cut of 1.0 mm and leed rate of
' 0'03 mm/rev needs 45 sec for set-up. Tool life for
; machining ,this 'rnaterial , is ;256 rrin ,when, th€machining
lnegd was 100 m(min, but the tool life
was only 16"'min at' the speed of 200 m,/min. Ittakes 1 min, to rephce the worn cutting tool.Compute the maximum production rate machining
, speed and togl life. Derive the forrnula used., i, . .l
Explain what is( c . ) .' pl(
!
ABC Company is attempting ,to determine whetheran existing machine is capable of milling an enginepart that has a key specification of 100,,f 0.025mm. After a trial run it was found that the machinehas a sample mean of 100. 025 mm with a S.D. of0'01 rnm. Calculate the L' for this machine anddetermine whether the Jlounu should use this
) .
of the concluding link of ,ato sum of the tolerances of
, r . '
3. (a)
(b)' -
t ' . , , , ' .
'the significance of capability index
(a) Show that the toleranceI
dirnension chain is equalall"component links.
(b) , Detgrmine the final value, of dimeqslon, ':c"
,-iF
: . . 5 l , o m i n a I s i z e e q u a ! i o n ; 6 * B = C : " $ i v e n r . ] ,A - I zo+3:33 and B = 70:3:18 ffiffi, :
5
tsME-Ol 1
(c) Show that the upper deviation of the concluding link
of a dimension chain is equal to sum of the upper
deviations of all ingreasing links minus the sum of
lower deviations of all decreasing links.
What is the difference between specification limits
and control limits ? Discuss.
Enumerate the advantages and disadvantages of
narrow band and wider band of control limits. Is it
always necessary to use t 3o limits for control
charts ?
There are two machines making springs, one new
spring winder and an older model. The target value
of the spring stiffness is m = 0'5 units and the
average loss function is given by :
L(y) = 222 loz + (t - dzl
Using the following data compute the average loss
functions for the two machines. The stiffness data
for the springs obtained from the two machines
are :
New . {0.37, 0.41, 0.37, 0.43
[0.39, 0.35, 0.4, 0.36
old , {o'ss' 0'67 ' o'70' o'54
10.41, 0.32, 0-46, 0.66
What steps would you recommend to improve the
process ? And what can you say about the quality of
the two processes ?
5. (a)
(b)
(c)
BME-01 1 P.T.O.
6. ,'(a) , ,Derive expression for . mactrining tirne for facel, ,, rnilling. , , ,,
(b) Discuss what factors should be consid ered in theselection of a process for manufacturing a work-part. s
(t). With ,re;ference to part print analysis, explain what,is ,meant by the degree of sym-metry'and,th* degree ofrelationship between surfaces. Give examples to
' :
7 - Write short explanatory notes on any three of the. ' -' fo l low ing : . , ' 14
(i), ' P;bduction planning' and ' oprrations plannlngI
sffategies'. , . : I ' ,
' , ' , I
, . i
tii) Ways of inputting part specifications into CAFPsystems
(iii}CornputerAidedEngineeringmaterialselection
(iv) steps involved in manual process planning
,.4BME;OI 1
ADVANCED DIPLOMA IN COMPUTERINTEGRATED MANUFACTURING (ADCIM)
Term-End Examination
December, 2006
BME-O 12: MANUFACTURING SYSTEMS,INTEGRATION AND CONTROL
Time : 3 hours Maximum Marks : 70
Note : Attempt qny seven quesffons of the following.Use of cqlculator is sllowed.
' 1. ' (a) What do you understand by the term 'Manufacturing
Systems' 7 With the help of suitable block diagram,
explain the position of the same in a fairly large
organization. '
(b) Write notes on the following :
(i) Material Requirement Planning
(ii) Master Production Schedule 5+5:70
2 . ( a ) W h a t d o y o u u n d e r s t a n d b y r e a l t i m e c o n t i o l s y s t e m
architecture ? Explain hierarchical levels in RCS in
detail
(b) ' ?"_:tlb:
manufacturing enterprise with reference to
IRIDA framework. 5+5:70
BME-012 P.T.O.
4. (a)
7. ta)
(b)
BME-012
(b)
(a)
(b)
Explain the 'bull whip' effect. Why do we require aproper coordination amgng the various stages of theproduction ? !
Explain the changes required in the present daymanufacturing system to adopt agile manufacturing.
5+5=70
what do you understand by the term 'Rapid' inRapid Prototyping ? Describe rapid prototyping toolin brief.
Explain 'Concurrent Engineering'' in detail. S+S:10
What are the key issues in developing intelligentagent based manufacturing system ?
Describe communication protocols used in Holonicmanufacturing system. Differentiate Holonicmanufacfuring system and Computer integratedmanufacturing 5+5=1,0
What do you mean by virtual manufacturing system ?What are the different paradigms of VMS ?
Why is AGV scheduling consid ered as a criticaldecision making problem ? Give some features ofAGV scheduling. 5+5*1A
what do you mean by knowfedge base ? How isknowledge representgd in knowledge base ?
What is decision treeneural networks ?
? Elnlain different layers of
5+5-1.0)
2
8. (a) Define supply chain management. what are the
managerial and behavioural components of a supply
(b) ffi : "."mmerce
?Name any three ERp ptavers, r-,r.* inr.ral , , , 5+5:70and their functional areas D*c=
g. what is a control chart ? List the various types of control
charts. Describe each one of them with a suitable example ' 10
10. What are the various types of agents in system
architecture ? -Discuss about iirtellig ence agents 10
BME-0121 ,000
ADVANCED DIPLOMA IN COMPUTERINTEGRATED MAhTFACTURING (ADCIM)
Term-End Examination
December, hOOG
BME.Ol3 : PRODUCTION TVIIRruAGEMENT
Time : 3 hours Maximt)m Marks : 70
Note : Attempt total 7 7 questions. Ques tion IVo. 1 is
compulsory. Attempt 10 more questions out of
remaining 13 quesfions.
1. Select the most suitable answer : 1x70=70
t
(i) Break-even analysis consists of
(a) Fixed cost
(b) Variable cost
(c) Fixed and variable costs
(d) Operation costs
(e) None of the above
BME-013 P.T.O.
(iii)
(iv)
(ii) lA/ork study is concemed with i(a)
lyt"vrng,present method a1d finding staldard
t i m g ' i " ' ' i ' ' i ' ' ' ' I I
? :
(b) Motivation of workers
(c) Improving production capability '
(d) Improving production planning and conhol
(e) All of the above
Basic tool in work study isi
(a) Graph paper
(b) Process chart
(c) Planning chart
(d) Stop watch
(e) Analytical mind l
What does symbol n impb in work sludy ?, : . , I . r
(a) Operation
(b) Inspection
(c) Transport
(d) DelayfTemporary storage ,(e) None of the above
(v) Statistical quality sampling techniques are UaSeO on
the theory of
(a) Quality
(b) Statistics
(c) Probability
(d) All of the above
(e) None of the above
BME'013
(vi) For ship vessel industry, the following layout is bestsuited :
(a) Process layout
(b) Product layout
(c) Fixed position layout
(d) Plant layout
(e) Functional layout
(vii) CPM is the
(a) Time Oriented Technique
(b) Event Oriented Technique
(c) Activity Oriented Technique
(d) Target Oriented Technique
(e) Work Oriented T-echnique
(viii) A dummy activity
(a) is artificially introduced
(b) is represented by a dotted line
(c) does not require any time
(d) All of the above
(e) None of the above
(ix) The uitical activity has
(a) Maximum float
(b) Minimum float
(c) Zero float
(d) Average float i :(e) None of the above ;
BME-013 . 3 P.T,O.
(x) Outcome of :Bull whip effect' in supply chaih is
(a) More stock-outs
(b) Increased inruentory
(c) Poor customer service
(d) All of the above
(e) None of the above
2.Whatarethefunct ionalareasofProduct ion.Manag"ryTt1
Differentiate between Production Managemefut and
Production. ,
3. What do you understand by Forecasting ? Why is it
necessary in production function ? 6
4. What is meant by plant location ? Discuss the steps'taken .
i n c h o o s i n g a l o c a t i o n f o r a c e m e n t d a n t , l ' i " . - .
5. Explain the term plant layout. Discuss the faetors'
influencing a layout decision. 6' :
6. Define the term 'Work Study'. State its obiectives. List out
all the therBligs used in micro-motion study., i' 6
7 . What do you understand by the term 'capactt5l' ? Hqp can
it be measured ? State the factors affecting deterrnination
of plant capacity.
L What are the objectives of MRP ? Explarn'- horrr each of
these objectives is achieved. :
: ; i : " . '
BME.O13 4
g. What is a network diagram ? Distinguish between AON
and AOA diagrams.
10. What is ERP ? Fxplain its main functions.
6
6
l l. what is the concept of 'Goal' ? Explain the terms :
!2. Explain the concept of a supply chain. What are the
benefits, and risks in supply chain integration ? 6
lS. What is JIT system ? Explain the difficulties in JIT
implementation.
14. Consider the following single machine scheduling
problem :
Job 0) 1 2 3 4 5
ProcessingTime (t ) hours
1 5 04 05 L4 08
Find the optimal sequence which will minimize the mean
flow time and also obtain the mean flow time.
BME-013 1,000
ADVANCEO DIPIPMA IN COMPUTERINTEGRATED MANUFACTURING (ADCIM)
Term-End Examination
Decernber, 2006
BME-014: METROLOGY ANDINSTRUMENTATION
Time : 3 hours Msximum Marks : 70
Note : Attempt any seuen questions. (Jse of calculafor is
allowed,
l. (a) Discuss briefly the need for precision measurement in
an engineering industry.,
(b) The length and width of rectangular plate are
.respectively. Calculate the area of the plate and also
uncertainty in the area. 5+5:70
2. (a) What do you understand by the terms : Precision,
Reproducibility and Accuracy, as applied to methods
of measurements ?
BME-014 P.T.O.
(b) The diameter of a steel ball is measured five times
with a microm eter, giving the following results :
8 '011, 8 '005, 8 .009, 8 .014 and 8 .011 mm.r ,L ̂ : ^ - ^ -
j , r - - - r - - - . ^ . l : r -Calculate the mgan diameter and its standard
deviation. ' 5+5= 10'
3. (a) A particular standard for 'Limit and Fits' forEngineering, recommends the use of Unilateral Hole
Basis System for -Indian industries. Explain the
meaning of the following terms :
(i) Hole BasiS System stating way it is\., r rvr\, r-rL.r,rrJ \-ryrrr:r r r rrl.far.rr rlt !,r,|-.y
recommended.
{ii) Unilateral and Bilateral Limits.
(b) In a hole and shaft combination of 25 mm nominal
size H7
, , , . + 0.021 mmnole ltmrts are
- 0'040 mmshaft limits are
\ '
State :
(i) maximum and minimum clearance obtainable, .:
(ii) allowance, and
(iii) tolerance on the hole.and the shaft.
4. ta) Classify the gauges based on the purposes for whichthey are used. ? \
\.'
BME-014
What are functions of the following gauges ?
(i) Form gauge !
(ii) Taper gauge
(iii) Reference gauge
(iv) Feller gauge
(v) Air gauge 5+5=70
gauglng a
toleran ce
5+5:70
6. (a) What are the advantages of electrical comparators
over mechanical comparators ? .
fhe divisions on the main scale of Vernier calipers(b) main scale of Verniet
are 0.5 mm apart. The vernier has 100 divisions
equal to gB main scale divisions. To what accuracy
ran the instrument read ? 5+5:70
(b)
(a)5 .
(b)
State the advantages and disadvantages for
mechanical shaft by means of limit gauges.
Discuss the various aspects for deciding the
on limit gauges.
Why is sine bar not preferred for measuring angle
more than 45' ?
A 20A mm sine: bar is to be set to an angle of
92" 5' 6". Find the length of the gauge- blocks
required, using any appropriate set of gauge blocks,5+5 :L0
7- (a)
(b)
BME-014 P.T.O.
8. (a)
(b)
9. (a)
lO. (a)
Explain briefly the various components of aprojector.
The magnification of a projector is S0 X. If thescreen diameter is 2 m, what is the maximumdiameter of the job, whose measurement ispossible ? S+S:IA
what are the advantages of in-processmeasurement ? Describe ' a few instrum ents/machi nes/procedures useful for in-processmeasurement.
- )what are the advantages of a co-ordinate rrr€dsuringmachine ? S+S=1,0rJ I rJ -
DiscussSomeadvantagesoflaserininterfeiometry'
Describe the optical system of a laser interferometer.5+5=7A
BME-014 1,000
Time : 2 hours
I i , : _ _
Diploma in Electrical and MechanicalEngineering
' . t . ,
Term-End Examination, .
December, 2006
BME.032 : REFRIGERATION &'AIR.CONDITIONING
, t
Mqximum Msrks : 70
Note 3 Answer fiue questions in sll. Question No, 1 is
compulsory. Answer four more quesfions fromthe remaining six ,q,uestions. Ass ume suitable data
wherever required,
r. (i)
(ii)
In manufacturing of precision metal parts,, air
conditioning helps to(a) keep the temperature uniform
iijr '': i ' ''(b) maintain humidity i: , ,(c) filter the air to miniffize dust
(d) All of the above :
A rev€rsed Carnot cycle has a COP ,of ,4.,The ratio
of higher temperature to lower temperature will be
(a) 1'5
(b) 2.a(c) 1'25(d) 2.s
BME-032 P.T.O.
(iv) In
is
(a)
(b). , ? :
. ,
(c)
(d)
(iii) Heat pump delivers heat frorn
(a) lower temperature to higher temperature
to**', temp"rutuii'""'r(b) higher temperature to
(c) It will not deliver any heat
(d) None of the above
a :vapour compression refrigeration system, the heatabsorbed from the environment to,bq sesled by
Evaporater
Condenser
Compressor:Throttle vialve
(c) Both
(d) None of the above
(vi) The chemical formula for
(a),
(b)
(c)
(d)
c2H2F2
cclzF2
cHctF2
czclzF 4
BME-032
(vii) Flooded'evaporator has to be fitted with
(a) Accumulator
(b) Float valve
(c) Liquid eliminator
(d) All of the above
2. (a)
(b)
3. (a)
7x2=74
What is Carnot refrigeration cycle ? Explain tln
four processes of Carnot refrigeration cycle, with the
P ' - V a n d T - S d i a g r a m '
List some applications of air conditioning' Why is air
conditioning important for textile industries ? 7 +7
what is a condenser ? what are the various types of
condensers ? with the herp of a neat sketch explain
the working of a double pipe condenser'
Explain the functions of a float valve, capillary tube
and thermostatic expansion valve 7 +7(b)
4. (a) :j::":: n,Hn::
characteristics or a 'uid to be
(b) What are halocarbon refrigerants ? How are these
refrigerants classified ? Describe briefly each one of
7+7thern.
5. How do the following two factors influence the
performance of vapour-compression refrigeration1 4
sYstem :
(i) Suction VaPour SuPerheat
(ii) Liquid Sub Cooling
BME-032P.T.O.
(a)
(b)
How uvould you calculate refrigeration= load infreezers ? Describe ail sources from, which rw cenl e a k i n s i d e a f r e e z e r .
, , , , ,write a note on comfort air conditioning bringingo u t a I l a s p e c t s . ' ' . ' . . . . . . . . ] ,
14
; t . 1 ' ' 1
i , ; :" : l i$O$i
7.TR
Bll,riE-S3Z
Diploma in Electrical and MechanicalEngineering
T€rtr-End Examination
December, 2006
BME-033 : HEAT POWER TECHNOLOGY
Time : 2 hours Maximum Marks : 70
Note : Answer fiue questions in all. Question No. 1 is
Corrtpulsory. Answer four more questions fromthe remaining six questions.
1. (i) A carburettor is used to supply
(a) petrol, air and lubricating oil
(b) air and diesel
(c) petrol and lubricating oil
(d) petrol and air
(ii) Which of the following does not relate to a spark
ignition engine ?
(a) Ignition coil
(b) Spark plug
(c) Distributor
(d) Fuel injector
BME-033 P.T.O.
tiiil : If the speed of the engine is increased, the indicatedpower will
: - r - . . . , . . it ( u ) " " t ' i r - r a ; u u r " t '
l ' ' ' ' ' '
, ' 1 . " ' : : ' : : ' I ' r ' i ' : ' : i
. : , , ! l ' , 1
' ' : '
r f ' " : , , " ; '
(b) decrease ;:. ' - . ; . . i ' . : . l ' ' ' i l : ; , i ' i ' ; .
(c) remain same" :
, . . , i , : ' ,
(d) None of these
i : , , l r i ' - , . . ) - ' " . . ' , ' , r ' , ; . ; , :
(iv) ?fie thefmd bfficiency'of petrol'' engine is ab'buti ' ';
(a) Lbo/o'
(b) 3,0%
(c) 50s/o
;
:
. * , j , , , , . : ( +
(v) When two pulleys of different diameters are connected
by means of an open belt drive then the an-gle of
contact taken into consideration should be of the
(a) ' larger pulley
(b) smaller pulleyt , :
.
(c) average of angles of two pulleys. l ' i . .
, .
, a I - , , ; , : 1 . 1 . . . : .
(vi) When the sleeve of a Porter governor moves
upwards, the speed of governor . 7ve: '
* i , i , . , . . _
(a) increases
(b) decreases
(c) remains unaffected
. ' i rBME-:033 2
(a)
(b)
State the function of fuel injector. Draw a typical
injector and label its parts.
A Fiat car engine has four cylinders of 68 mm bore
and 75 mm stroke. The compression ratio is 8.
Calculate the cubic capacity of the engine and the
clearance volume of each cylinder.
Explain the working principle of a simple carburettor
with a neat diagram.
State the main function of spark plug. Draw a neat
sketch of a spark plug and label its components.
A simple Watt Governor rotates at 100 rpm.
Calculate its vertical height and change if the speed
increases to 105 rpm. Also calculate the height at
100 rpm if the weight of the ball is 15 N and that
of the arm is 5 N.
Find the power transmitted by a belt running over a
pulley of 7A cm diameter at 300 rpm p : 0'3 and
angle of lap is 160" and rnaximum tension in the belt
is 2453 N.
t
What is a kinernatic pair ? How are kinematic pairs
classified ? Explain briefly different types of
kinematic pairs according to the type of contact.
Deduce the formula for velocity ratio of a compound
belt drive.
3. (a)
(b)
4. (a)
5. (a)
(b)
BME-033
(b)
P.T.O.
6. (a) With a' neat sketch, explain the therrnos5lphon
system of engine cooling.
(b) Name the different types of Snap gauges. Describ
any one type of Snap gauge with a neat sketch.
7. (a) With the help of a neat sketch explain the working
of a battery ignition system.
(b) A fly*heel of an engine has a mass of 3000 kg and
has a radius of gyration of 0'9 m. If the maximum
and minirnum speeds are 100 rpm and 98 rpm, .findthe rnaximum fluctuation of energy.
,1;000BME-033
Electrisal alrd Mechanical
Ternn-;End Exam,ina,tion'
December, zgAG
,BME-SQ4 ;,MACffiNE DRAWING
Tirne : 2 hour"s Maximum Marks : 70
Nofe : AnELper afil guesfions.
I
l. Answer any eeuen of, 11"" followipg questions. Avoidwasting time in writing"more than required. 2x7:74
; . ,(a) Name fow types of machine drawing.
(b) Sketch the symbol'used for Third angle projection.
{c} Figure 1 shows the front view of an object. Draw thepossible end view.
P . T . O 1tsME-O,34
Figure 7
i
(d) i""'$hetch a Gib headed key used in cou$tngs'
(e) Name two types of loints used for h
(0 r,*':Ih6dse6tt{tr#j'biriesgre u5ffi;tg,+tran$ffiit"i,l ',
betw een two rod$nmd.th4r tt$elinot made to rotate.
: l
Figure I
The object ts" a(1) Lock nut
(21 Flanged nut
(3) Hexagon bolt
(g)
(h)
(i) Figure
grrn'E-69+
2' Figure'3' shows a ,rectangular fork head of square section, acotter, a gib and a square bar. Assernble the four parts anddraw elevation and top view, both in fuil.
d20
t
1
$irqt/'
sg
.sqsot4tra)E
tt=
tlr
Figure S
OR
BME-034P . T . O .
{,:
I , r
et f .o Figure 4 shows a cotteq socket and $n1got. Assemb'k-fhdi "
three, parts qnd drAW the llrutf section FJevati?q*"{ *:O*
v i e w " i n f u l l . i i . . ,; , ' , ..,:.. '
' .,,., '
',t j t i l" 'n ,;,,-:.
strfol
..t ii . !.
tniill'
4Bls,l$-0$4
Draw plan and erevation of a double rivetted butt joint with
double cover plate with chain rivetting using the following
specifications :*
Plate thickness : 22 mm
Cover plate thickness = !7'5 mm
Margin = 42 mm
Longitudinal Pitch = 84 mm
Rivet diametet = 28 mm
Rivet hole diameter : 29 mm
Back Pitch : 67 mm
BME-O34 5 1 , 0 0 (
Diploma in Electrical and MechanicalEngineering
T€rm-End Examination
December, 2006
BME-043 : RAC IUTILIZATION
Time : 2 hours Maximum Marks : 70
Note : AIL questions ere compulsory. Use of calculstoris allowed.
SECTION A
l. Choose the correct answer : 74x7=74
(i) COP is equal to the ratio of
(a) heat absorbed and work done
(b) heat rejectedand work done
(c) heat absorbed and heat rejected :
(d) work done and heat rejected
BME-043 , , P.T.O.
(ii) In a refrigeration system, a receiwr is placed in
between\
(a) compressor and evaporator
(b) evaporator and expansion valve
tc) expansion valve and condenssr
(d) condenser and compressor
(iii) Which one is the designation of R7I7 ?
(a) Water
(b) Ammonia
(c) Carbon dioxide \ e
(d) Methene
(iv) Specific heat of liquid refrigerant shrould be
(a) as small as possible
(b) as large as possible
(c) medium
(d) None of the abo'ue
(v) Neurton's law of cooling gives heat trarnfer b
(a) radiation
U convection '
(c) conduction
(d) radiation and conduction
,&hfirfr443
(vi) ff H' H, H, and Hu are the enthalpy of refrigerant
at the end of evaporation, compression,
condensation and expansion resp-ectively, what
should be the work done ?
(a) Hz Hl
(b) H1 H4
(c) H3 - H4
(d) H2 H3
Air Conditioning means control of
(a) temperature and humidity
(b) temperature alone
(c) humidity alone
(d) temperature, humidity, cleanliness and air
motion
Viscosity of refrigerant should be
(a) low
(b) high
(c) medium
(d) nothing can be said
To define thermodynamic state of a mixture of two
substances, how many properties are required ?
(a) one
(b) two
(c) three
(d) four
(vii)
(viii)
(ix)
BME-043 P.T.O.
(x) A horizontal line towards, saturation line in apsychlometric chart shows
(a) Cooling
(b) Heating
(c) Humidifying :
(d) De-humidifying ,'
(xi) Wm*lK-l is the unit of
(a) thermal conductivity
, (b) thermal resistance :
(c) heat transfer co-efficient
(d) None of the above I : ::
; ;(xii) What should be the optimum inside temperature for
comfort summer air-conditioning ?
(a) 24" Cto 26' C
( b ) 2 2 C t o 2 3 , C
(c) 23' C to 24' C
(d) 24" C to 25 C
, , . ,(xiii) Centrifugal compressor serves refrigeration system in
t h e r a n g e o f , , : ,
(a) 50 kW to 500 kW
(b) 500 kw to 1o0o kw
(c) 20AkW to 10,000 kW
(d) 1000 kW to 2000 kW
BME-043
(xiv) For handling refrigerant that requires small
displacements and operates at high condensing
pressure, which type . of compressor should be
recommended ?
(a) Centrifugal type
(b) Rotary type
(c) Screw type
(d) Reciprocating type
2. Answer any two of the following :
(a) (i) Define air conditioning.
(ii) Write f,ew applications of air conditioning.
(iii) Write short notes on summer air conditioning.2+2+3
(b) What is the difference between heat engine and heat
pump ? What is COP ? Write a short note on
refrigerating capacity. 3+2+2
(c) Write chemical ''and
physical properties of a good
refrigerant.
3. Answer any two of the following :
(a) (i) State Dalton's law of partial pressure.
(ii) Define any two:
. ffi:: ffi:ilDegree of saturation
Dew Point temPerature 2+5
BME.O43 5 P.T,O.
' :
(b} ''Howi &t€r heat : exchangers classifted,'?'Wri,te, 'u
sho* l
note on any orie type. what is LMTD and NTu ?: :
L+S+S' : ,
(c) Deduce an expressiqn for radial heat flow rate of ahollow cylinder. From this calculate logarithrnic meanarea.
'4. Answer any two of the following :
(a) (i) How are'compressors classified ?
(ii) Define volumetric effici"rry. '': '' " 1
t
(iii) write methods of improving volumetricefficiency.
Y Z-+Z+S
{b}' " '61; ' what' '" isl tha' function', 'of 'condsrrsr
rn'
- - - f r : , . , ' ' -
t ' ^ ' '
' :
., , retrigeration system ?
(ii) ,Write ghont potep ofl,any *wo z. . . . : . . . , , ) r , - l ' ,
,, (1) Air cooled condenser
(21 Water cooled cond€nser
(3) Evaporatiw condens€r ' ' 'r'";': '
E+5,
(c) (il whai i, 'the
function of **;rator in' . ' ' : ; t ' ' _
refrigeration systern ?. '
(ii) How are the evafiorators classified ? Explain thefunctioning o{ any on€ type with the help of
, r - - I t , . . i l , ; . 1 ; 1 , ; :
neat sketch. E+S
Bfr4E-043
5. Answer any ,two of the following :
(a) Write the steps involved in preventive maintenance
7of a refrigeration plant.
(b) What important points should be considered for duct
7design ?1(c) write short notes on (any two') : s Z "z
(i) Natural Convection condenser
(ii) Parallel flow and counter flow heat exchan ger
(iii) Shell and Tube condenser
(iv) Rotary compr€ssor
(v) Components of room sensible heat in airconditioning heat load calculation
B,ME-043 1,000
Diploma in Electrical and MechanicalEngirreering
\. Term-End Examination
December, ?OOG
BME-044 : INDUSTRIAL MANAGEMENT
Time : 2 hours Maximum Marks : 70
Note : A,ttempt any six questions. Quesf ion No. 1 is
compulsory. Mqrks are giuen far each question.
l. Select the most suitable answer : 70x2:24
(i) is the art of getting things done through
and with the people in formally organi zed groups.
(a) Management
(b) Control
(c) Supervision , '
(d) None of the above .
is responsible for , the iSsue of
instructions on the basis of organization policy.
(a) Middle management
(b) Top management ,
(c) Lower management
(d) None of the above
(ii)
BME-044 P.T.O.
ti,ii):
Hprnan relation aspectproposed by
(a) 'Douglas Mccregol
(b) Elton Mayo
(c) F.\A/. Taylor
(d) Rogers , ,,' ,
of r,nanagernent u&$
is deciding in adr*ance what is to b€done in fufure. r
(d Organizing
(b) Planning
(c) Controlling
(d) '$tafting :
(v) The function ofmanning the organiation struuture to ensure that anenterprise can be competently operated.(a) Staffing
(b) Controlling
(c) Organizing, : ' , . , ; -(d) Planning
a person who has completedbut has not completed 18 yems of
-
(iv)
ts(vi)
15 years of ageage.
(a) Adult
(b) Adolescent
(c) child! l
td) None of the
Bfrtf E"044
(vii) Father of scientific Management is(a) Gilbreth
(b) Gnatt
(c) Taylor
(d) Newton
(viii) An industrial dispute is a dispute, disagreement otdifference between
(a) Management and Government
(b) Emplo yer and Employees
(c) Trade Unions .and Trade Unions(d) AII of the above
(ix) The Emplo yee Provident Fund Act is applicable to(a) All industries
(b) Only small and rnedium industries(c) Industries which volunt eer for the same(d) The industries notified by Government
(x) Salient provisions of the Factory Act lg4g are
(a) Welfare
(b) Employnrent of young persons :
(c), Licensing and registration
(d) All of the above
2- (a) What do you understand by Management ? Discussthe functioqs of Management;
(b) What are the various Jevels of Management ? Discussthem in brief. 10
BME=044 3 r P.T.O.
3. (a)
(b)
4. (a)
(b)
5. (a)
(b)
7. (a)
r b )
. '
8. Write short notes on the following :
( a ) . P o l l u t i o n C o n t 1 g l ' A c t . . . ';
b) hdustrial Disputes Act
Bh4E-044
I
What are the principles enunciated by, F.W. Taylor
for Scientific Management of work ?
What are the various qualities of managers under
Scientific Management Theory ? 10
Define planning, organizing, staffing, leading
coordinating. '
What are the essential characteristics of ,principles of management ?
Define Supervision. Describe the qualities
supervisor.
and' 1 , ,
the
1"0
of' a
(b)
6. (a)
What is the importance of effective controlling ? 10
Define leadeiship.. How does it ; differ ,
managgment !
Discuss the relationship between leadership
motivation.
What, are the main assumptions of Theory'
Discuss its suitability in rnodern times.
Write the facilities lwhidh must be prodded 'by a
factory owner to the workers under; the FAclories
Act.
frorn
':
and1 0
X ?
1.4
":"
f
