Engg Services Civil Engineering Objective Paper 1 2009(1)

7/27/2019 Engg Services Civil Engineering Objective Paper 1 2009(1)

1/28

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8ft.ain t:t'. I1n, Sc.r"U;::t

[DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO)

T.B.C. : O-FTF-J-DFA

Serial No. [ 18821 )

(Time Allowed: Two Hours)

TEST BOOKLETCIVIL ENGINEERING

P a p e r - I

INSTRUCTIONS

Test Booklet Series

A[ Maximum Marks: 200)

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( DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO )


2/28

I. What is th e ratio of th e elastic modulus ofstructural timber in longitudina l direction tothat in the transverse direction?

(a ) 112 to I(b) 1/10 to 1 / 20

(c ) I to 2(d) 10 to 20

2 . What is the modulus of elasticity of standardtimber (Group B) in (MN/cm 2 ) ?

(a) 05 to 10

(b) ) 0 to 125

(c ) 125101 5

(d) 15 to 175

3 . What is the treatment for making timber fire-resistant?

(a) ASCU treatment

(b) Abet's process

(c ) Creosoting

(d) Tarring

4 . How is the process of treatment of woodusing a preservative solution an d forcing ai rin at a pressure designated ?

(a ) Ruping process

(b) Lawri process

(c) Full cell process

(d) Empty cell process

5. Modular bricks are o f nominal size20 x ) Ox 10 cm an d 20% of he volume is lostin mortar between joints. Then what is the

number of modular bricks required per cubicmeter of brickwork ?

(a) 520

(b) 50 0

(c ) 48 5

(d) 470

2

6. In order to achieve a safe compressivestrength of 20 kg/cm2 in a brick masonry,what should be the suitable range o fcrushing strength o f bricks ?

(a) 35 kg/cm 2 to 70 kg/cm 2

(b ) 70 kg/cm 2 to 105 kg/cm 2

(c) 105 kg/cm' to 125 kg/cm 2

(d) More than 125 kg/cm 2

7. What is th e requirement of water (expressedas % of cement w/w) for the completion ofchemical reactions in the process o fhydration of OP C ?

(a) 10 to 15%

(b ) 15 to 20 %

(c) 20 to 25 %

(d) 25 to 30 %

8. Which factors comprise maturi ty o fconcrete?

(a) Compressive strength and flexuralstrength of concrete

.(b ) Cement content per cubic metre andcompressive strength of concrete

(c) Curing age and curing temperature of

concrete

(d) Age and aggregate content pe r cubicmetre of concrete

9. What is the minimum value of individualtest results (i n N/mm2) fo r compressive

strength compliance requirement for

concrete M20 as per codal provision?

(a )

(b )

(c )

(d )

f - Iok

f - 3'k

f - 4ok

f - 5ok

(eonld.)


3/28

10 . Fo r what reason is it taken that the nominal 13 . What is the ratio of flexmal strength (fer)

maximum size of aggregate ma y be as large to the characteristic compressive strength of

as possible?concrete (fck) for M25 grade concrete?(a) 008

(a) Larger the maximum size of aggregate, (b) 0 11more the cement required and so higher (c) 014the strength. (d) 017

(b) Larger the maximum size of aggregate,Which of the following tests compares thesmaller is the cement requirement for 14 .dynamic modulus of elasticity of samples

a particular water cement ratio and so of concrete?more economical the mix . (a) Compression test

(c) Larger the maximum size of aggregate, (b) Ultrasonic pulse velocity testlesser are the voids in the mix an d (c) Split testhence also lesser the cement required. (d) Tension test

(d) Larger the maximum size of aggregate, 15 . Which one o f th e following is correctmore the surface area and better the regarding the most effective requirementsbond between aggregates and cement, of durability in concrete?and so higher the strength . (a) Providing reinforcement near the

exposed concrete surface.11. What is the representative geometric mean (b) Applying a protective coating to the

size of an aggregate sample if its fineness exposed concrete surface.modulus is 3 0 ? (c) Restrict ing th e minimum cement

(a) 150 ~ m content and th e maximum watercement ratio and the type of cement.

(b) 300 ~ m (d) Compacting the concrete to a greater(c) 6 0 0 ~ m degree.

(d) 12 ~ m 16 . A solid metal bar o f uniform sectional

12. A square steel ba r of 50 mm side and 5 marea throughout its length hangs verticallyfrom its upper end. Details of the ba r are:

long is subjected to a load whereupon it length = 6 m, material density = 8 x I 0- ' N Iabsorbs a strain energy of 100 J. What is its mm' and E = 2 x 10 ' N/mm 2 What will be

modulus of resilience? the total elongation of the bar in mm ?

288

(a) 1 1 (a) 10 4125 Nm m l mm48

(b) 125 mm'lNmm (b) 10 4

I 3 144(c) 100 Nmmlmm (c) 10 4

(d) 100mm ' INmm 72(d)10 4

3 (Contd.)0


4/28

17 . A circular rod of diameter 30 mm and length 21. At a point in a piece of stressed material the20 0 mm is subjected to a tensile force. Th e stresses are :extension in rod is 009 mm and change in

ax = o.kN/m' tensile (normal)diameter is 00045 mm . What is thePoisson's ratio of th e material of the rod ? 'X y = ' y x = I3kN/m' (shearing).(a) 030 Although th e values o f a. an d 13 are no t(b) 0 32 known yet the principal stresses are equal

(c) 033 to each other being (5 kN/m'). What is the

(d) 0 35 radius of Mohr's circle?

18. For a material having modulus of elasticity(a) 25 + (a. + 13)

equal to 20 8 GPa and Poisson's ratio equal(b) 2 .5 + (0.+13)

to O 3, what is the modulus of rigidity ? 2(a) 740 GP a (c) 0(b) 800 GP a (d) 25(c) 1000 GP a(d) 1285 GP a 22. What is the radius of Mohr's circle in case

of bi -axial state of stress?19 . What would be the shape of the failure

(a) Half the sum of the two principalsurface of a standard cast iron specimensubjected to torque? stresses.

(a) Cu p and cone shape at th e centre. (b) Half he difference of the two principal

(b) Plane surface perpendicular to the axis stresses.

of the specimen. (c) Difference o f the two principal

(c) Pyramid type wedge-shaped surface stresses.perpendicular to the axis o f the (d) Sum of the two principal stresses.specimen.

(d) Helicoidal surface at 45 0 to th e axis of 23. A circular column of external diameter D,the specimen. an d internal diameter d, carries an eccentric

20. Given E as the Young's modulus of elasticityload such that tension is developed nowhere.

of a material, what can be the minimum What shall be the diameter of the core?

value of its bulk modulus of elasticity ?(a)

D2 +d 2

E 8d(a)

2 D2 _ d 2E

(b)8d

(b ) -3 D2 +d 2

E (c) 4d(c)4 D2 _ d 2E (d) 4d(d)5

4 (Contd .)0


5/28

24. A mild steel ba r of square cross section25 mm x 25 mm is 1 m long . I t issubjected to bi-axial stress 0" , = 480 N/mm'

(Tension) and 0" = 400 N / m m 'y

25 .

(

(Compression) . E = 2x 10 ' N / mm', = 0 ,3 ,

what is the elongation of he bar in mm in xdirection?

(a ) 10

(b ) 15

(c ) 2 0

(d) 3 0

~

y

121 MN / m '

L )x 0 .

= = = = = = = = = ~ >56 MN / m '

1o ~ 21 MN/m'y

Figure shows a state of plane stress . If theminimum principal stress is - 7 MN/m' then

what is the value of 0" . ?(a ) 30 MN/m 2

(b) 68 MN/m '

(c ) 98 MN /m 2

(d) 105 MN/m'

5o

26 . The details of the principal stresses at

a certain point in a steel member are as

follows:

Major principal stress 0", = 180 N/mm 2

(Tensile)Major principal stress 0" , is

(Compressive)

I f the uniaxial tensile yield stress is

24 0 N/mm' , according to maximum

shear stress theory, what would be the value

of 0" , in N/mm ' which yielding will

commence ?

(a) 120 tension

(b ) 90 tension

(c) 80 compression

(d) 60 compression

27 . An element o f a structure is subjected to two

Principal stresses 0", and0" ,

.

0", = 200 N/mm' (Tensile) ,

0" , is Compressive .

Th e yield stress both in simple tension and

compression for the material is 240 N/mm'.

Poisson's ratio 1.1 = 025; what is the value

o f 0", in N/mm' as per maximum normal

strain theory at which the yield of th e

material will commence ?

(a) 240

(b ) 200

(c) 180

(d) 160

(Contd.)


6/28

28 . A structural beam subjected to sagging

bending has a cross-section which is an

unsymmetrical I-section . The overall depth

of the beam is 300 mm. Th e flange stresses

in the beam are :

29.

cr = 20 0 N/mm 2,op .cr = 50N/mm 2bott om

What is the height in mm of the neutral axis

above the bottom flange?

(a) 24 0 mm

(b ) 60 mm

(c) 180 mm

(d) 120mm

4 kN

1c

g kN .m

A simply supported beam AS is loaded asshown in the figure above . What is the SF

in kN in the portion AC of the beam ?

(a) 2

(b) 4

(c ) 0

(d ) 6

6o

30.

4 kN .m 4 kN .m

n n~

31.

A B

I ~ 4 m ~ I

A simply supported beam AS of span 4 m

is subjected to terminal couples as shown

in the figure above . IfEI is in kN.m 2 , what

is the magnitude of he central deflection of

the beam in metres?

(a )

(b )

(c )

(d )

4EI

8EI

2EI

16

EI

A timber beam is 100 mm wide and 150 mm

deep . The beam is simply supported and

carries a central concentrated load W. If themaximum stress in shear is 2 N/mm2, what

would be th e corresponding load W on the

beam ?

(a) 20 kN

(b ) 30 kN

(c) 40 kN

(d) 25 kN

(Contd.)


7/28

32 . y

h x

h

y

A square section as shown in th e figureabove is subjected to bending moment M .W h ~ t

is the maximum bending stress?

12M.(a) cr = cr =-- be bI h 3

6M(b ) cri>< = cr .. = h3

9M

(c ) cr be ~ c r b l= .2h 3

(d )9M

crbc = cr IM= h3

33. A 4 0 m m diameter shaft is subjected to atwist ing moment M,. I f shear stressdeveloped in shaft is 5 N/mm2, what is th evalue of the twisting moment?

(a ) 628 8 Nm

(b ) 32 8 4 Nm

(c ) 628 Nm

(d) 30 4 Nm

7o

34. Torsion applied to a circular shaft resultsin a twist o f 10 over a length o f 1 m.The maximum shear stress induced is

120 N/mm 2 an d the modulus of rigidity ofthe shaft material is 0 8 x 10 ' N/mm 2 Whatis th e radius of the shaft ?

35.

30 0(a)

7t

180(b)

7t

90(c )

1t

27 0(d)

I t

c

B

A~ - - - - - - - - ~ ~ - - ~ - -

E

I-k-- 2 m - - - - " ! ; , l ~ ( - - - -2 .m ~

2m

o

Th e above figure shows .a i n ~ j o i n t e dframe.What are th e forces in members BE, CD an d

E D ?(a ) 10kN, 5 kNand 5 kN .

(b) 10 kN , 5 kN an d Zero

(c) 5 kN , 10 kN an d Zero

(d) 5 kN , 5 kN and Zero

(Contd.)


8/28

36. A mild steel rod tapers uniformly from

30 mm diameter to 12 mm diameter

in a length o f 300 mm. The rod is

subjected to an axial load o f 12 kN .E = 2 x 10 ' N/mm 2 What is th e extension of

th e rod in mm ?

(a)

(b)

(c )

(d )

47t

5

251t

1t

5

157t

38. 30 kN

AHinge B c D

1 m 1 m

Which one o f the fol lowing is the

correct bending moment diagram fo r apropped cantilever beam shown in figureabove?

(a )30 kN m

B c DA

30 kJlojm

(b) 15 kN m

B c DA


9/28

39.

Consider the following statements with

respect to the above figure of a typical

articulated frame :

I . Th e frame is internally determinate and

externally indeterminate.

2 . The frame is internally indeterminate

an d externally determinate .

3 . The frame is internally as well as

externally determinate .

4 . The frame is internally as well as

externally indeterminate .

Which o f the above statements is/are

correct?

(a ) I only

(b) 1 an d 2

(c) 3 on l y

(d) 3 a n d 4

40 .

41.

9o

9 m

20 kN 20 kN 20 kN 20 kN 20 kN

I - < < E - - - -6 @ 6 ~ 36 m - - - ~ > ~

What is . th e force in member I fo r th estructure shown in figure abo ve ?

(a ) 30 kN

(b) 60 kN

(c ) 75 kN

(d) 80 kN

B

T4 m1

c

A D~ ~ - -5 m - ; . j

10 kN / m

What is the value of vertical reaction at A

for th e frame shown in figure above?

(a ) 0

(b) 10 kN

(c ) 16 kN

(d ) 20 kN

(Contd.)


10/28

42.

L L

45

o

w

Tw o bars AO and BO are of uniform area

'A ' an d are hinged at O. What is th e vertical

deflection at 0 when elastic modulus is

uniformly E ?

(a)

(b)

(c)

(d )

WL

2AE

WL

AE

43 . A fixed end beam o f uniform cross-section

is loaded uniformly throughout the span.

What is the proportion o f th e bending

moment at the centre to the end moment

considering only elastic conditions?

(a ) I : I

(b ) I : 2

(c ) I : 4

(d ) 2 : 3

10o

44.

45.

10 kN 10 kN

w

2m

2m

R R

A beam of uniform flexural rigidity supportsa set ofloads as shown in figure above. What

is th e value o f W i f th e magnitudes o fbending moment at midspan and at supportof the beam are numerically equal?

(a ) 20 kN

(b ) 40 kN

(c) 60 kN

(d) 80 kN

. w kN / m

AI""'" " ' ' 'b'-C_-@-=E=-I--t::I

I I - - - 7 I V?j

What is the reaction on the pi n C for a beamas shown in the figure above?

(a ) ~ W I kN8

(b) .!.. W I kN2

(c ) .!.. W I kN4

(d) ~ W I kN16

(Contd.)


11/28

46 .

47.

~ L ~

Tci CM EI

L EI

1 AWhat is the rotation of the member at C fora frame as shown in figure above?

M L(a)

3 EI

(b )ML

4El

ML(c )6ElML

(d )--12 EI

p

A

I - ~ * ~ -I

What is the moment at A for a frame asshown in figure above ? Each memberindicated in dark lines has very largemoment of inertia.

(a )

(b )

(c )

(d )

PL

2PL4

PL8

PL16

48 .

49.

11o

w

A

I

B

What is the bending moment at the en d Bfor th e guided beam as shown in the figureabove considering the beam to be heldrigidly at B against rotation and to supporta load W ?

(a ) Zero

(b )

(c )

W I

4

W I

2

(d ) WI

10

.J/ 2 m B ;::~ ~ r - - - - - - - - - -D

~

1 i C - - - - 6 m )f

6 m

A = l f l l l . l " f f ~

What is th e value of9 s for the beam shown

in figure above?

(a ) Zero

15(b) El anticlockwise

(c )30EI anticlockwise

(d)30EI clockwise

(Contd.)

- - - - - - - - - - - - - - - - - - - - - - - - --


12/28

50_

51.

6 t 6 t

I 1 1 I\Ie 2 m )\< 2 m---->l

A beam of uniform section fixed at both endsand of span 6 m is acted upon by twoconcentrated loads of 6 t each as shown infigure above_ What is the fixed end momentat each end?

(a) 6 tm

(b ) 8 tm(c) 10tm

(d ) 12tm

I B cFlexibility matrix of the beam shown aboveis :

I [I 2]O=3EI 2 8

6If support B settles by EI units, what is the

reaction at B ?

(a ) 0-756

(b ) 3-0 t-

(c ) 6-06

(d ) 24 -0 t-

12

52_

A B C 0

rrr;;; 2 m O > - - - , 2 = - - m - J G ; ; - i i ?

53_

What is the ordinate of influence line at Bfor reaction Rv in above figure ?(a) 0-5

(b) 0 -4

(c ) 0-2

(d ) Zero

I EI CD EI CD~ ~~ T i

R ) ) v. ~ . v 2

What is the value of flexibility coefficientfl2 for the continuous beam shown in figureabove?

(a )

(b )

(c)

(d )

(Contd_)


13/28

54: - What is the area oflnfluence line diagramfor the reaction at the hinged end of a unifonnpropped cantilever beam of span L ?

I j

- 1 2 0 m m ~

7 f '

20mm

100 mm1

What is the distance between elastic

neutral axis and plastic neutral axis for

the cross-section as shown in figure

above?

(a ) . 60 nun

(b ) 50mm

(e) 40mm

- Cd) 20 mm

Steel .of yield strength 400 MPa ha s

beeriused in a structure . What is the

value of the 'maximum allowable tensile

strength?.,

"

(a) 240MPa

(b ) 200MPa .,.:

(c) 120MPa.( , . ~ i

(d) 96MPa

61. Which one of the following graphs

represents the compressive strength (


15/28

62. A steel plate is 30 0 mm wide and 10 mmthick. A rivet of nominal diameter of 16 mmis driven into it. What is the net sectionalarea o f th e plate?

63.

p

(a) 2600 mm 2

(b) 2760 mm 2

(c) 2830 mm'

(d) 2840 mm 2

~ 6 0 m m,, p

What is the safe load P that can betransmitted by the fillet-welded joint shownin figure above if th e safe allowable shearstress in th e fillet-weld is 108 MP a ?

(a ) 60 kN

(b) 66 kN(c ) 77 kN

(d ) 81 kN

64. A canti lever steel beam o f 3 m spancarries a uniformly distributed load o f20 kN/m inclusive o f self-weight. Thebeam comprises of ISLB200@198 N/m,flange = 100 mm x 73 mm; web thickness =

54 mm' I = 16966 cm I = 1154 cm., xx ' )')'What is th e maximum bending stress in th ebeam?

(a) 13262 N/mm'

(b ) 53047 N/mm'

(c ) 194974 N/mm'

(d ) 389948 N/mm 2

IS. 0

65. A tension member consists of two anglesplaced back to back. Fo r which one of th efollowing configurations, will the load

caiTying capacity o f he tension member be

maximum ?(a) Gusset plate is in between th e two

angles and tacking rivets are provided

(b) Gusset plate is in between the twoangles and no tacking r ivets areprovided

(c) Gusset plate is on one side of the tw oangles and tacking rivets are provided

(d) Gusset plate is on one side of the tw oangles and no tacking rivets areprovided

66. For a welded plate girder with verticalstiffeners, what is the maximum depth o fweb provisionable in design when thethickness of th e we b plate is 5 mm ?

(a ) 425 mm

(b ) 1000mm

(c) 1250 mm(d) 2000mm

67. A symmetric plate girder is of I section o fdepth D. Th e flange plates are of area Af

each and the web plate is of area Aw' Whatis th e plastic section modulus of the abovesection provisionable for design?

(a) (A f

+A4

w

) d

(b) ( A f + ~ w) d

(c) ( A f + A8w

) d

(d ) ( A f + ~ ; ) d

(Contd .)


16/28

68. An ISMB 300 beam has modulus of sectionof600 x l0 3 mm 3 Platesof200 mm x 10mm

are added by welding them on e on each

flange to have total depth o f section as

32 0 mm . What is the section modulus ofthe plated section?

(a) 462xl0 3 mm 3

(b) 550x 10 3 mm 3

(c) 710 x l0 3 mm 3

(d) 1220 x 10 3 mm 3

69 . A column bearing truss in an openindustrial shed is 6 m height between itsown base and th e bottom o f th e truss.

What is the effective height o f the

column taken for calculation o f

compressive strength?

(a) 48 m

(b ) 6 0 m

(c ) 7 2 m

(d) 90 m

70 . Which one o f the following values

represents the maximum slenderness

ratio o f any connection member which

normally acts as a tie in a roof trussbut can be subjected to possible reversal

of stresses from th e action o f wind orseismic force?

(a) ISO

(b ) 20 0

(c ) 25 0

(d) 350

16o

71. Consider the following statements :

72.

I. When wind load is the primary load,no increase in the allowable stresses iprovided for in members or fasteners.

2. Due to wind load acting along withdead and l ive loads, increase in

allowable stress upto 33 33 % ca n bprovided for .

3. Due to wind load acting along withdead load, increase in allowable stressof 25 % in foundation bolts can beprovided fOf .

Which o f the above statements is/are

correct?

(a) 1 ,2and3

(b) I only

(c) 2 and 3

(d) 3 only

MelOO [Y. = 40 mm, Yy = 15 mm]

. ~ _ _ _ _ ~ ______ ______ D

Section YY

What is the slenderness ratio to bconsidered in design for member Be in thstructure shown above?

(a) 75

(b ) 150

(c) 100

(d) 20 0

(Contd


17/28

73 . A simply supported beam o f uniform crosssection has span 'L ' and is loaded by apoint load 'p o at its mid-span. What is thelength of th e elastoplastic zone of the plastic

hinge?

74.

(a)

(b)

(c)

(d)

L3

2L3

L2

3L4

i ' i < : ~ - - -40 0 mm - - - - - - : J I ~i - - - - - - - - - - - , 7 f \

50 0 mm

1

100 mm. - - - - - - '

~ : n o ~r--In a T-section shown in figure above. whatis th e distance o f plastic neutral axis as

measured down from top?

(a) 100 mm

(b ) ISO mm

(c) 200 mm

(d) 300 mm

17o


76.

Torsional restraint in a beam can be achieved

by providing :

1. Web or f lange cleats at the end

connections.

2. External support to the end of th e

compression flange.

3. Bearing stiffness acting in conjunction

with the bearing of the beam.

Which o f the above statements is /are

correct?

(a)

(b )(c)

(d )

TI1

I only

I and 2 only2 an d 3 only

1 ,2and3

6 P

B c

1lllT!11lT

A 0~ / - + / ~

At the point of collapse, what is the value

of horizontal thrust at point A in the loadedframe shown in figure?

(a ) 3 P

(b) 2 P

(c) 15P

(d ) P

(Contd.)


18/28

77. In limit state design method, the moment of

resistance for a balanced section using M20grade concrete and HYSD steel o f gradeFe415 is given by M , _ = Kbd 2, what is the" ,om

7S.

0 -8

0 -2

o

valueof 'K' ?

(a) 2-9S(b) 2'76

(c) 119

(d) 0'S9

0 2 0 -3

A RC column of square cross-section(400 x 400 mm 2) has it s column load

moment interaction diagram as shown infigure above . What is the maximum uniaxialeccentricity at which a factored loadPu = 640 kN can be applied safely? (Take

fCk = 20 MPa)

(a) 300 mm

(b) 40 0 mm

(c) 600 mm

(d) SOO mm

ISo

79 . How is the deflection in RC beamscontrolled as per IS456 ?(a) By using large aspect ratio(b) By using small modular ratio(c) By controlling span / depth ratio(d) -By moderating water-cement ratio

SO. At what stress does the first flexural crackappear in RC C beams made of M25 gradeconcrete?

(a) 3'0 MPa

(b) 3 '5 MPa(c) 4'OMPa(d) 4' 5 MP a

SI.What is the adoptable

maximumspacingbetween vertical stirrups in an RCC beam

of rectangular cross-section having aneffective depth of 300 mm ?

S2 .

(a) 300 mm(b) 275 mm

. (c) 250 mm

(d) 225 mm

0 0 0

~ 250 m m ~

T400 mm1

A simply supported RC beam havingclear span 5 m and support width 300 mmhas the cross-section as shown in figure

What is the effective span of the beam asper IS456?(a) 5300mm(b) 5400mm(c) 5200 mm

(d) 5150 mm

(Contd.)


19/28

83 . Consider the following statements dealingwith flexural reinforcement to be terminatedin the tension zone :

I. The shear at the cut-off point not toexceed two-third o f the otherwisepermitted value.

2 . Shear reinforcement is provided alongeach terminated bar overlapping threefourth of the appropriate distance fromthe cut-off point.

3 . For 36 mm and smaller bars , th econtinuing bars shall provide doublethe area required for flexure at the cutoff and shear does not exceed threefourth of the permitted value .

Which o f the above statements is/arecorrect?

(a) 1,2and3

(b) I and 2 only

(c) 2 and 3 only

(d) 3 only

84. Match List-l with List-II and select th ecorrect answer using the code given below

the lists:

A.

B .

List-/

IS-875

IS-1343

C . IS-1893

D . IS-3370C o d e :

List-ll

I . Earthquake resistantdesign

2 . Loads

3. Liquid storagestructure

4 . Prestressed concrete

A B C D(a ) 3 1 4 2

(b ) 2 1 4 3

(c ) 3 4 1 2

(d ) 2 4 1 3

19o

85 . What is the modular ratio to be used in theanalysis ofRC beams using working stressmethod if the grade of concrete is M20 ?

(a) 18 6

(b) 133

(c) 99

(d) 65

86 . Considering modular ratio as 13 , grade ofconcrete as M20 and grade of steel as 415,what is the ratio of balanced depth of neutralaxis as per working stress method to the

balanced depth of neutral axis as per limitstate method ?

(a )

(b )

(c)

(d )

127

11

3

7

12

311

87 . What is the anchorage value o f astandard hook of a reinforcement bar ofdiameter D ?

(a ) 4D

(b ) 80

(c ) 120

(d) 160

(Contd.)


20/28

88. How is the base-level bend ing moment of a 90. Match List-I with List-II and select the

cantilev e r retaining wall expressed as a correct answer using the code given below

function o f its height H ? the lists :

(a) H'List-I List-II

A. Moment and l . Durability(b) H2 shear coefficients(c) H ' B. Fire resistance 2. Stability(d) H4 C. Sliding 3. Analysis of

structure

D . Span to depth 4 . Deflection89 . Match List-I with List-II and select the ratio of beam limits

correct answer using the code given below C o d e :

the lists : A B C D

List - / List-II (a) 4 2 I 3

A. At end support, for l . 0 5 (b) 3 2 1 4imposed load (not (c ) 4 I 2 3

fixed) (d) . 3 2 4

B. At inside support, 2. 055 9 l. Match List-I with List-II and select the

next inner to end correct answer using the code gi,!en below

support, for imposed th e lists :

load (fixed) Lisl-I L i s l ~ I I

C. At end support, for 3 . 0 60 A .Vu

l. Modulus of ruptur

dead load and (fixed)bd

imposed load B. 07 .jfcK 2. Development lengthD. At all other interior 4 . 0-45

5000 .jfcKsupports (other than C. 3 . Nominal shear

at 'B ') , for imposed stress

load (fixed)D.

cf>fs4. Hook anchorage

5 . 0-4 41:8 valueCode : 5. Modulus of con-

A B C Dcrete

(a) 5 3 2 4Code :

A B C D(b ) 4 2 5 1 (a) 3 I 5 2(c) 2 3 4 (b) 2 I 4 3(d) 5 3 2 I (c) 3 5 I 4

(d) 2 4 I 3

200

(Contd.


21/28

92. Consider the following statements:

93.

The shear resistance of structural concretemembers may be improved by :

I. Axial prestressing.

2. Vertical prestressing.3. Inclined prestressing.

Which o f the above statements is/arecorrect?

(a) I only

(b ) I and 2 only

(c) 2 and 3 only

(d) 1 ,2 and 3

30 kN/m (including self weight)

,p =

e = 20 0 mm 1000 kN

~ - - - - - 1 0m - - - - . : : : 0 1

What is the net downward load to be

considered for the analysis of he prestressedconcrete beam provided with a paraboliccable as shown in the figure?

(a) 12 kN/m

(b) 13 kN/m

(c) 14 kN/m

(d) 15 kN/m

21o

94. What shall be the maximum area oreinforcement (i) in compression and (ii)tension to be provided in an RC beamrespectively, as pe r 18456 ?

(a) 008% and 2%

(b) 2% and 4%

(c) 4% and 2%

(d) 4% and 4%

95. Consider the following statements fominimum reinforcement to be provideda wall as a ratio of vertical reinforcement togross concrete area:

I . 0 0012 for deformed bars.

2. 00015 for all other types of bars.

3. 0 0012 for welded wire fabric witwires not larger than 16 mm idiameter.

Which of the above statements is/arecorrect?

(a) 1,2 and 3

(b) I only

(c) 2 and 3 only

(d) 3 only

96. An equipment costs Rs. 25 Lakhs with aestimated salvage value of Rs. 5 Lakhs afte5 years o f useful life. What is th

approximate equated annual cost for use othe equipment?

(a) Rs. 4 Lakhs

(b) Rs. 10 Lakhs

(c) Rs. 13 Lakhs

(d) Rs. 17 Lakhs

(Contd.


22/28

97 . Consider the following parameters :1. The stability of the footing .

2 . The strength of the boom .3. The counterweight.

4 . Size of aggregates.

Which of the above parameters governs theload capacity o f a crane?

(a) I only

(b) 1 , 2 and 3

(c) 2 and 3 only

(d) 2 , 3 an d 4

98 . A preliminary survey indicates that 20 % ofth e time o f a gang of workers is spentid l y. What is the total number ofobservations required to determine theproportion of dle time with 95% confidencelimit ? Critical value at this level o fconfidence is 196 .

(a) 236 observations

(b) 246 observations

(c) 256 observations

(d) 266 observations

99 . An engine was tested at local atmosphericpressure o f 73 em o f mercury an d localtemperature o f 10C, an d wa s found todevelop XI units of power. I f it was laterworked at conditions of 75 em of mercuryas local atmospheric pressure and at localtemperature of 16C, what proportion of XIwill it then develop?

I(a) nearly 60 times more

(b)I .

nearly 60 times less

I(c) nearly 50 times more

(d )I

nearly 50 times less

22

100 . Consider the following equipments :

I. Drag line

2. Power shovel

3. Hoe

4. Crawler dozer

Which o f th e above ma y be used for

excavation o f materials and loading them

into trucks?

(a) 1,2 and 3

(b) I an d 2 only

(c) 2 and 3 only

(d) 2 , 3 an d 4

101. A power shovel is fitted with an engine o f

150 f.w.h.p . I t operates on full load for

6 minutes followed by 8 minutes of idling

at one-third power. Its hourly utilization isfor 3 cycles . What is its utilization factor?

(a) 0398

(b) 0 433

(c) 0467

(d) 0528

102. A construction equipment ha s a usefullife of 4 yrs after which it is to be replacedby a new one . I f the interest rate is 6%,

what is the nearest value of the sinking fund

factor?

(a) 0023

(b) 023

(c ) 017

(d) 0 31

(Contd.)


23/28


I. There is no large difference I n

speed between wheeled tractors an d

crawlers.

2. The operating cost o f crawlers isgenerally more than for wheeled

tractors.

3 . Both, viz, wheeled tractors as well as

crawlers, need to be mounted on

trailers for long distance hauls.

4 . Wheeled tractors may occasionally

suffer slips whereas crawlers do not.

Which of the above statements is/are NOT

correct?

(a) I only

(b) I an d 2

(c) I and 3

(d) 3 an d 4

104. A 175 m ' capacity tractor loader ha s a

forward loaded speed of 240 mimin,

returning unloaded speed of300 mfmin and

operates at 80 % of the specffied speed . It

hauls earth over a distance of 60 m with

fixed time pe r trip being 25 seconds . What

is its effective cycle t ime?

(a) 54 25 seconds

(b) 55 50 seconds

(c) 56 75 seconds

(d ) 5875 seconds

23o

105.

12-18

@5H IS-25

'- @7'-

' -

E14-IS-,-

@ S-10-12 ,-D

@6 13-15@ 7

F G9-14 16-17

@6 @S

The scheduled durations, by the convention

' after/at the end of indicated day number'

and the cost per day of duration, of eachactivity are shown in the network above.

What are the costs incurred on day numbers13 and 17 ?

(a) 14 and 20

(b) I l a n d l 8

(c) 14 and 21

(d) 11 and 21

106. A 16 m ' capacity tractor loader works at a

site with an effective per-round-trip time of

64 seconds. Effective delivery of excavated

material is 90%. Ifutilization is 50 minutes

per hour working, what will be th e

productivity in a 4-hour shift ?

(a) 253 m'

(b) 262 m'

(c) 270 m'

(d) 282 m'

(Contd.)


24/28

107.

Ho w many links are deletable in the A-O-N

network shown above?

(a) None

(b) One

(c ) Two

(d) Three

108 . What is the duration by which th e

completion time of any activity can be

delayed without affecting the start of any of

the succeeding activities?

(a) Interfering float

(b ) Free float

(c) Independent float

(d) Total float

24o

109. Consider the accompanying A-O-Ndiagram :

A

"

Which one o f the following A-O-A

diagrams correctly represents this A-O-Ndiagram ?

(a)

2 5

4 7

' t 3 3 ~ - - . 2 ( 6

(b)

} - - ~2 } - - - ( } - , , - - - ' i > l 7

(c )

(d)~ - { 3

} - - ; > ( ) - - 7 { 4 ) - - - ' ~

(Contd.)


25/28

110 . Match List-I with List-II and select thecorrect answer using the code given belowthe lists:

List-I

(Equipment)

A. Derrick crane

B. Ho e

C. Clamshell

D. Dumper Truck

Code :

A B C D

(a ) 2 1

(b ) 3

(c ) 2 4

(d) 3 4

4 3

4 2I 3

1 2

List-II

(Category)

J. Excavatingequipment

2 . Haulingequipment

3. Hoistingequipment

4 . Vertical liftingequipment

111. Which one o f the following isassociated with a critical activity in aA-O-A network?

(a) Maximum float

(b) Minimum float

(c) Zero float

(d) Free float

25

112 . A unifonn series of income is available in

perpetuity, which will yield an amount of

Rs. 4,000/- at the end of each 4-year period.

113 .

Sinking fund (deposit) factor, @ 8% p.a.,

for discrete compounding, is 0'222. For thesame interest rate, what will be the

capitalized equivalent income 'now' ?

(a) Rs . 11,100

(b) Rs.12,5oo

(c) Rs. 14,285

(d) Rs. 16,000

B7, 10, 13

What is the porportional variation ; and what

is : the 'range ' o f project duration: the

network as shown with the indicated

probabilistic a, m, b durations o f th e

respective activities?

1(a) 1 5 , 28 t 042

I(b ) 1 5 , 3 0 to 45

I(c) 12 ,2 8 to 42

1(d) 12 ,30 to 45

(Contd,)


26/28

114 . Which on e o f the following relates todetermination of critical path in PERT?

(a) Event oriented slack

(b) Activity oriented float

(c) Event oriented float

(d) Activity oriented slack

Directions : -

Each o f the next Six (06) items consistsof two statements, one labelled as the' Assertion (A) ' and the other as'Reason (R) ' . You are to examine these

tw o statements carefully and select theanswers to these items using the codesgiven below :

Codes :

(a) Both A and R are individually trueand R is the correct explanation ofA

(b ) Both A and R are individually truebu t R is no t the correct explanationo f A

(c ) A is true but R is false

(d) A is false but R is true .

115 . Assertion (A): The rate of hydration isfaster in finer cements.

Reason (R) The surface area finercement is more in case

of finer cement.

116 . Assertion (A): Strength of concrete is

Reason (R )

reduced du e tosegregation .

Reducing the workabilityof concrete mix resultsin segregation.

26

117. Assertion (A) : The lower the differencebetween the minimumstrength and the meanstrength of a concrete

mix , th e lower thecement content to beused .

Reason (R) The method forcontrolling the differencebetween the minimumstrength and the meanstrength is qualitycontrol.

118. Assertion (A): Shearing force may bedefined as the rate ofchange of loadingmoment.

Reason (R) Shearing force at asection is the algebraicsu m of the forces to theleft of the section. .

119. Assertion (A): The provision of lateralreinforcement in RCC

Reason (R)

columns is notmandatory.

The lateral reinforcementin RCC columns helps inpreventing possiblebulking of longitudinalreinforcement.

120 . Assertion (A): Method of momentdistribution is classifiableas a force method.

Reason (R) The method consists ofcomputing end momentsdue to end rotation of themember .


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SPACE FOR ROUGH WORK

27o


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SPACE FOR ROUGH WORK

Documents

Engg Services Civil Engineering Objective Paper 1 2009(1)