# Sathyabama University 2008 B.E Civil Engineering Surveying - II - Question Paper

**SATHYABAMA****
UNIVERSITY**

**(Established under section 3 of UGC Act, 1956)**

Course & Branch: B.E - CIVIL (Part Time)

Title of the paper: Surveying - II

Semester: II Max. Marks: 80

Sub.Code: 620PT203 (2007/2007 JAN) Time: 3 Hours

Date: 19-05-2008 Session: FN

PART A (10 x 2 = 20)

Answer All the Questions

1. What is theodolite? What are its uses?

2. Give a list of temporary and permanent adjustments of a transit theodolite.

3. What are the different systems of tacheometeric measurement?

4. What is an anallatic lines?

5. Define the terms probable value and probable error.

6. What are the different types of signals used in triangulation?

7. State the principle of signals used in triangulation?

8. State the laws of weights.

9. Explain the term degree of curve.

10. What is a reverse curve?

PART B (5 x 12 = 60)

Answer All the Questions

11. (a) List the fundamental lines of a
theodolite. Explain briefly

the desired relationships between these and the effects if

such relationships are not maintained.

(b) Explain the procedure to measure the bearing of a line with a theodolite.

(or)

12. (a) Explain briefly the different methods of
traversing with a

theodolite.

(b) Explain the step procedure to measure the vertical angle between two points.

13. A tachometer was kept at A and the stadia rod was held at B. The vertical angles measured to the 1m and 4m marks on the rod were 345' and 530', respectively. If the RL of the instrument axis is 1050m, find the distance AB and the RL of station B.

(or)

14. The vertical angle to a station B was measured as 1645'. The staff intercept was 3.15m. The staff was supposed to be held vertical but was out of plump by 50mm in 4m (away from the observer). Find the error in the horizontal distance. K = 400,C= 0.

15. (a) Explain with sketches, the different triangulation systems.

(b) Explain briefly the different aspects of
fieldwork in

triangulation.

(or)

16. Two triangulation stations A and B are 50km apart. The elevation of A is 205.5m and that of B is 232.2m. The intervening ground may be assumed to have a uniform elevation of 175m. Determine the height of the signal at B if the line of sight is required to pass at least 3m above ground.

17. (a) What is a correlate? Explain the method
of finding probable

values using correlates.

(b) What is a level net? Explain how a level net a adjusted.

(or)

18. (a) What are normal equations? Explain the
method of forming

normal equations.

(b) Describe the method of adjusting a triangle with a central station.

19. A 4 curve (on a 20m arc) has a deflection angle of 75. Tabulate the radial offsets from the tangents to set the left half of the curve. Also tabulate the chainages of the points obtained if the chainage of the point intersection is 1300.5m.

(or)

20. A curve of radius 800m (deflection angle = 100) is to be set with perpendicular offsets from a tangent. Tabulate the values of the offsets for points at 20m intervals along the tangent, till the value of offsets ≥ 20m.

Earning: Approval pending. |