Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (CE)- Civil Engineering 2020 December 3rd Sem 56075 Surveying Previous Question Paper
Roll No.
Total No. of Pages : 03
Total No. of Questions : 18
B.Tech. (CE) (2012 to 2017) (Sem.?3)
SURVEYING
Subject Code : BTCE-304
M.Code : 56075
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
What is Reconnaissance?
2.
What do you understand by limiting length of an offset in chain survey?
3.
Explain with neat sketches open traverse.
4.
Define the following: True bearing and Magnetic bearing.
5.
What is meant by plane tabling?
6.
Explain the need for the following field precautions in leveling :
I. Bring the bubble to mid-run just before taking a reading.
II. Keep, as far as possible, back sight and fore sight distances equal.
7.
Define, with the help of neat sketches the following:- Height of instrument and Fore Sight.
8.
List the two uses of a contoured topographic map.
9.
What contour intervals would you suggest for the following :
Engineering project and A city survey
10. Define the tangent length with respect to curves.
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SECTION-B
11. The length of the offset is 20 m and the scale of the plant is 5 m to 1 cm. If the offset is laid
out 4? from its true direction in the field, find the resulting displacement of the plotted
point on the paper (i) in a direction parallel to the chain line (ii) in a direction perpendicular
to the chain line.
12. What are sources of error in plane table survey? Discuss briefly.
13. A chain line ABC crosses a river, B and C being on the near and distant banks respectively.
A line BD of length 100 m is set out at right angles to chain line at B. If the bearings of BD
and DC are 287? ? 15' and 62' ? 15' respectively. Find the width of the river.
14. What are the difficulties in setting out simple curves? Describe briefly the methods
employed in overecoming them. :
15. The following bearings are given : calculate in each case, the angle BAC.
AB
AC
a) N 25? ? 30' E
N 85? ?15' E
b) N 20? ? 15' E
N 52? ? 30' R
c) S 70? ? 0' E
S 10?? 0' W
d) N 40? ? 30' W
N 46? ? 0' E
e) N 50? ? 30' E
S 20? ? 30' W
SECTION-C
16. The following notes refer to a part of a traverse survey :
Line
Length in metres
Bearing
AB
686
352? 24'
BC
1824
24? 36'
CD
1053
147? 30'
Calculate the distance between a point E on AB, 28 m from A, and a point F on CD 650 m
from C.
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17. What are sources of error in Chain survey? Explain in detail.
18. Calculate the offsets at 20 m intervals along the tangents to locate a curve having a radius
of 400 m, the deflection angle being 60?.
a) Define an expression for the following elements of a simple curve :
b) Length of curve
c) Apex distance
d) Mid ordinate
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 13 February 2021