E E3841 Pages: 2

Reg No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER B.TECH DEGREE EXAMINATION, APRIL 2018

Course Code: CE207
Course Name: SURVEYING (CE)

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks Marks
1 ಖ Explain the principle of levelling with a neat sketch. (4) b) Define the different
types of survey stations and survey lines. (5)

c) Define Orientation. What are the different methods of orientation adopted in (6) graphical method

of surveying?

2 a) Define contour. What are the factors affecting selection of contour interval? (7) ४) The
following bearings were observed in traversing, with a compass, an area (8) where local
attraction was suspected. Find the amounts of local attraction at different stations, the correct
bearings of lines and the included angles.

Line F.B. B.B.

AB 68°15’ 248°15’
BC 148°45° 326°15’
CD 22430: 46°00’
DE 21715: 38°15’
EA 32745" 14745”

3 9) How are bearings designated? Distinguish between them. (6) 9) The following consecutive
readings were taken with a level and a 4m levelling (9) staff on a continuously sloping ground
at common intervals of 30m.

8.855 (on A), 1.545, 2.335, 3.115, 3.825, 0.455, 1.380, 2.055, 2.855, 3.455, 0.585,

1.015, 1.850, 2.755, 3.845 (on B).

The RL of A was 380.500m. Make entries in a level field book and apply the usual checks.
Determine the gradient.

PART B
Answer any two full questions, each carries 15 marks

4 2) State Simpson’s rule and trapezoidal rule for computation of area. (3)
b) What is meant by triangulation figures? Explain each with neat sketches. (5)
௦) The elevation of two triangulation stations A and 8, 100 km apart, are 180 mand 450 7 (7)
respectively. The intervening obstruction situated at C, 75 km from A, has an
elevation of 259 m. Ascertain if A and B are intervisible. If not, 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, assuming A as the ground station.

5 a) Explain the construction and characteristics of mass diagram. (5)
b) A road at a constant RL of 180.00 m runs North to South. The ground East to (10)
West is level. The surface levels along the centre line of the road are as follows:

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