Surveying Online Test – Paper 3

1. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

2. The triangle formed by joining the position of the known points on plane table survey is known as:

3. If the magnetic bearing of the sun at noon at a place in the southern hemisphere is 150°, the magnetic declination at that place is

4. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

5. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

6. Resection is the method employed for:

7. The true bearing of a line can be calculated as (Where the declination is to the east.)

8. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

9. The projection of a line on a plane perpendicular to the meridian is known as

10. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

11. Tilting levels are used for

12. A straight line tangential to the longitudinal curve of the level tube at its center is known as

13. The position of a point can be fixed more accurately by

14. Chainage is the distance measured

15. The magnification of a telescope lens depends upon

16. The magnetic north is indicated by

17. The multiplying constant of a tacheometer is

18. The rise and fall method of leveling provides a complete check on

19. In the case of leveling staff readings are taken by (In the case of target staff)

20. Chain surveying is used for

21. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

22. The designation of scale recommended by IS: 1491-1959 is

23. Well-conditioned triangle having an angle between

24. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

25. In survey works, declination varies from time to time and place to place. The main important variation is

26. Bowditch's rule is applied to

27. Tacheometry is adopted where

28. Working edge of alidade is called

29. Different grades are joined together by a

30. The line normal to the plumb line is known as

31. The types of instrument generally used in the survey of gravity water supply system are:

32. The location of the contour gradient for a highway is best set out from

33. Overturning of vehicles on a curve can be avoided by using

34. The foremost work to be executed while traversing with a compass is

35. Azimuth and altitude of a star

36. The best method of interpolation of contours in the direct method of contouring is by

37. The horizontal distances obtained by tacheometry are corrected for

38. The resection by a two-point problem as compared to the three-point problem:

39. The contour lines merge or cross one another on the map in the case of

40. An internal focusing type of telescope is focused by the movement of

41. A river is an obstacle to

42. Natural error in leveling is caused due to

43. The image of the objectives formed should lie

44. The curvature and refraction corrections applied to staff readings respectively are

45. The angle that can be set by a French cross-staff is

46. The included angles of the theodolite traverse are generally measured

47. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

48. *The correction for refraction is given by

49. In the case of a telescopic alidade, the adjustment done is

50. For a tacheometer, the additive and multiplying constants are respectively