Surveying Online Test – Paper 3

1. A series of closely spaced contour lines represent a

2. The last reading of leveling is always at

3. A benchmark (BM) is a

4. Compensating errors in chaining or other surveys are

5. The angle which the true meridian makes with the magnetic meridian is called

6. The number of links in a 30 m metric chain is

7. The types of survey in which fieldwork and plotting proceed simultaneously are:

8. Well-conditioned triangle having an angle between

9. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

10. 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

11. The device used in computing the horizontal and vertical distances rapidly and conveniently is

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

13. A contour map of the area is essential before proceeding with the construction of

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

15. A Cadastral Map is a map having

16. Which one of the following is not a personal error?

17. The horizontal distances obtained by tacheometry are corrected for

18. If the needle is truly magnetic and is not sluggish

19. In chain survey execution, this first step taken is

20. If n observations are taken, the accidental errors are proportional to

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

22. For any point on the surface with a given inclination, the contour gradient possible is

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

24. Bowditch's rule is applied to

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

26. The height of instrument method is

27. Metallic tapes are made of

28. The strength of fix' is poor when:

29. The magnification of a telescope lens depends upon

30. The advantage of anallatic lens is

31. *The two-peg method is used to check the parallelism between the

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

33. Hydrographic survey deals with the mapping of

34. Axis method of traverse correction is used when

35. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

36. *The method of leveling used to carry out the reconnaissance of an area is

37. The tacheometric method is a more suitable method for preparing the contour map of

38. Level surface is parallel to

39. In a prismatic compass,

40. Least count is given by

41. An instrumental error in compass survey is because

42. Find the length of curve if R=500 m, Intersection angle= 120°

43. Contour interval, within the limits of a map

44. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

45. A discrepancy is the difference between

46. *The instrument used to measure horizontal and vertical angle is

47. Cubic parabola is a type of

48. The sag correction is always

49. The permissible limits of error in chaining for measurement on rough or hilly ground are

50. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by