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10cv/8v34

(08 Marks}|

Third Semester B.E. Degree Examination, Dec.20l4/ Jan.20l5Surveying - I

Time: 3 hrs.

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Max. Marks:100 ';,,Note: l. Answer FIVE full questions, selecting

at least TWO questions from each part.2. Assume missing data suitably.

1,'' ;

PART - A

Line AB BC CD DE E,A

Fore Bearing 60030' 122',0' 46"o', 205'3}', 300'0'PART _ B

What is local attraction? How it detected and eliminated? , (Q{ Marks)

A closed compass traverse was conducted round a forest and the following wholereircle

bearings were observed. Determine which of the stations suffer from local u,rtu"11sii,'.and

b.

c.

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What is surveying? Explain the basic principles of surveying. (08 Marks)

Difftjeffiate between plan and map. (02 Marks)

Give ihe;broad classification of surveying. ,i ,.:: (10 Marks).t ::

What are tdgdifferent types of chains and tapes used in survey.iaii?'' (06 Marks)

Explain the miitffiof direct ranging by the use of time rT#..u_dh_? 1e1t

s\9tch. (06 Marks)

The distance bet#€sn the points measured along a slope iSi,8-,"p0 m. Find the distance between

the points, ifi) The angle of slop-,,between the points is lOuN,

ii) The difference in l€Vel.between the pojnt iS 60 m. (08 Marks)

Explain the basic principle of ED$f,.d.pvice's'""i,,, (04 Marks)

Explain with a neat sketch, the consdiuelion'ind working of an optical square. (08 Marks)

Two stations P and Q, on the main *'UWV line, were taken on the opposite sides of a pond.

On the right of PQ, a line PR, 210'"gtong ryAs laid down and another line PS, 260 rnt long

was laid down on the left of PQ. fie points R, Q and S are on the same straight line. The

measured lengths of RQ anf1Q$'ire 85 m and 7f'rn, respectively. What is the length iilR;

Distinguish between: .l;.'{1ll't

i) Magnetic bearing and time bearing.

ii) Whole circle bea;ing and reduced bearing.

iii) Isogonic li*q;and Agonic line. (06 Marks)

DifferentiatghtWeen prismatic compass and surveyor's comPassr,* ..,, (06 Marks)

The folldwinq bearines were observed with a compass. Calculate the iittgrior angles.folldwdifg bearings were observed with a compass. Calculate the ihtgrior angles.

:t'

compute the value of correctedLine Fore bearing Back bearins

AB 74"20', 256"o',

BC 107020' 286020',

CD 224050', 44"50',

DA 306040' 12600'

I of2

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5c.

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lOCV/E'V34

In the following traverse ABCDE, the length and bearing of EA is omitted, calculate thelength and bearing of line EA. (08 Marks)

Line Lensth (M) BearingAB 204.0 87030',

BC 226.0 20"20'CD 187.0 28000'

DE t92.0 210"3'EA ? ?f::

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6 a. Pefihsthe following terms:rr

' -, ,,:::,, ,i) ':Backsight;.

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.....: .. .!

.r.,'r' '... .!'::: ::: ::

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(08 Marks)(04 Marks)

(06 Marks)(06 Marks)

.i, (08 Marks)tl"

b.

c. The following readir\gi $T/ere observed successively with a levelling instrument. Theinstrument was shifted a$ef;:5" and l lth readings. Draw a page of level book and determinethe R.L of various points byff'tmethod if the.R".L"of the I't point was 264.350 mt.

it) "$dxe-sightiil)

iv) RedExplain the tempo justments of Dumpy level.The following readi

Explain the characteri$fioS of contour.Followins o

the R.L of various points U1r**'tmethod if the.R".L"of the I't point was 264.350 mt.0.495, r.020,L781,3.395,3.875,rp-Q60, l,"Eqs$.785,2.675,3.395,3.995, 1.935,0.435 and1.705

List the advantages and disadvant =,af phne table surveying. (08 Marks)What is meant by orientation? LiSt,tSe differpn-g methods of orientation. (04 Marks)Explain radiation method "T1.* table survoljn$yith a neat sketch. (08 Marks)

Define a contour. List the uses of contour maps.

7a.b.L.

8a.b.

were taken in

r' Find the reduced level of B (Time RL)Combined correction for curvature and refraction.

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r {i ,:'

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Instrument @. Remains

2.565m Dist AB : 1420 m1.935m RL of A: 108.360 m

2 of2

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