Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 4th Sem 3140601 Surveying Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER? IV EXAMINATION ? SUMMER 2020
Subject Code: 3140601 Date:26/10/2020
Subject Name: Surveying
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1
(a) Define (i) Swinging (ii) Line of collimation (iii) Temporary
03
adjustment of theodolite
(b) What are the advantages and disadvantages of Plane table surveying?
04
(c) Enlist methods of theodolite traversing and explain any one of them in
07
detail.
Q.2
(a) State different methods of measurement of horizontal angle using
03
theodolite and explain any one method
(b) Define (1) Latitude (2) Departure (3 Independent Co-Ordinate (4)
04
Consective Coordinate
(c) Enlist different methods of plane tabling and explain method of
07
traversing.
OR
(c) Derive the expressions for computing horizontal distance and
07
elevation in trigonometric leveling while base of the object is
inaccessible and instrument stations are in the same vertical plane with
the elevated object for the instrument axis at same level.
Q.3
(a) Define transition curve, compound curve and reverse curve.
03
(b) Distinguish between trigonometric levelling and direct levelling.
04
(c) Explain offsets from the long chord method of setting out circular
07
curve with neat sketch.
OR
Q.3
(a) Define Tachometry. Explain the procedure for finding the co-efficient
03
in the field for stadia constants K and C
(b) Differentiate between trapezoidal rule and Simpson's rule.
04
1
(c) Calculate the perpendicular offsets at 20 m interval to set out a simple
07
circular curve of 280 m radius and deflection angle of 60o
Q.4
(a) (1) What is basic requirement of triangulation station?
03
(2) What is best shape of triangle in triangulation system?
(3) Name the station which is selected close to the main triangulation
station, to avoid intervening obstruction
(b) Differentiate between fixed hair method and movable hair method of
04
techeometry.
(c) An excavation is to be made for a reservoir 20 m long and 12 m wide
07
at the bottom, having the side of the excavation slope at 2:1. Calculate
the volume of excavation if the depth is 4 metres. The ground surface
is level before excavation.
OR
Q.4
(a) What is meant by a satellite station? Why it is required?
03
(b) Discuss all components of GIS
04
(c) Explain the method of correlates in theory of errors
07
Q.5
(a) Explain tangential method in tacheometry
03
(b) What do you understand by accidental errors? State salient features of
04
accidental errors.
(c) The altitudes of two proposed stations A and B, 100 km apart, are
07
respectively 420 m and 700 m. The intervening obstruction situated at
C, 70 km from A has an elevation of 478 m. Ascertain if A and B are
inter visible, and if necessary, find by how much B should be raised so
that the line of sight must nowhere be less than 3 m above the surface
of the ground.
OR
Q.5
(a) Write a note on Geospatial data
03
(b) How total station is different from theodolite? Give salient features of
04
total stati
on.
(c) Determine the gradient from a point P to point Q from the following
07
observations carried out with a tacheometer fitted with anallatic lens:
Inst. Bearing Staff Vertical Staff
Station point angle readings
O 345o P +15o 0.750, 1.435, 2.120
75o Q +10o 0.625, 1.835, 3.050
Assume that the staff is held vertically and the multiplying constant of
the instrument is 100.
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This post was last modified on 04 March 2021