Surveying Online Test – Paper 3

1. The three-point problem is concerned with:

2. A series of closely spaced contour lines represent a

3. Chain surveying is used for a small area in

4. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

5. Short offsets are measured with

6. The multiplying constant of a tacheometer is

7. The correction for curvature as applied to staff reading is

8. The whole circle bearing 338°42" converted into quadrantal form is given as

9. The prismatic compass and the surveyor's compass respectively give

10. 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

11. An instrumental error in compass survey is because

12. Ranging is the process of

13. In the direct method of contouring, the process of locating points lying on a contour is known as

14. Working edge of alidade is called

15. True meridians

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

17. Contour lines

18. An offset scale always has the zero mark at

19. The "point of tangency" of a simple circular curve is

20. Revolving of the telescope of a theodolite in a horizontal plane is

21. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

22. 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

23. Which of the following instruments is generally used for baseline measurements?

24. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

25. The outer spindle attached to the lower plate in a transit theodolite is known as

26. The sag correction is always

27. *The leveling of the instrument is done such that

28. "Fiducial edge" is the working edge of

29. Boning rod is used

30. The height of instrument method is

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

32. *The correction for refraction is given by

33. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

34. Find the R.F. of 1cm = 5m

35. Direction of the closing error is given by

36. In tacheometric survey, the method which provides easy reading of the staff is

37. Contours are used to determine

38. In the intersection method of plane tabling, the number of stations needed to be set up is:

39. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

40. Intersection is preferred to radiation when:

41. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

42. The number of horizontal cross wires in a stadia diaphragm is

43. Bench marks are fixed by

44. The quadrantal bearing of a line is determined by:

45. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

46. The strength of fix' is poor when:

47. The angle subtended by the long chord of a simple curve at its center is equal to

48. The errors due to bad ranging are

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

50. The strength of the fix of a plane table is: