Surveying Online Test – Paper 3

1. Offsets are

2. The Philadelphia rod is a type of

3. The needle is adjusted for

4. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

5. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

6. In compass surveying

7. *Error due to imperfect adjustment of plate level is termed as

8. *Total station measures

9. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

10. An anallatic lens is provided in a tacheometer to measure the horizontal distance.

11. A 30 m long chain when tested should not show errors exceeding

12. The sag correction is always

13. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

14. Crosshairs in a surveying telescope are fitted

15. 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

16. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

17. Bowditch's rule is applied to

18. *Which instrument is not used in plane table

19. Parallax may be eliminated by

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

21. The bearing of the traverse line is calculated by

22. The principle of surveying to prevent the accumulation of errors is

23. Any arbitrarily assumed level line from which vertical distances are measured is known as

24. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

25. The instrument used for measuring area on a contour map is

26. A negative declination shows the magnetic meridian to the

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

28. The graduations in a prismatic compass are

29. *The line of collimation should be parallel to

30. A traverse deflection angle is

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

32. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

33. Right face and left face readings are taken to

34. The chain length which is not the standard metric chain length is

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

36. A series of closely spaced contour lines represent a

37. Azimuth and altitude of a star

38. Under Survey, "working from whole to part" is done

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

40. The amount of correction due to local attraction at a place

41. A chain is made up of mild steel or galvanized iron wire of diameter

42. Chainage is the distance measured

43. The instrument used for centering the plane table accurately is:

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

45. With the help of leveling, we measure

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

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

48. The telescope is said to be normal when the

49. Setting up the plane table consists of operations:

50. The projection of a line on a plane parallel to the meridian is known as