Surveying Online Test – Paper 3

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

2. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

3. The perpendicular distance of the midpoint of the line from the reference meridian is known as

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

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

6. Automatic level has advantages of

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

8. The main difference between an optical square and a prism square is

9. *Total station is

10. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

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

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

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

14. Least count is given by

15. Contours are used to determine

16. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

17. Obstacle to ranging but not chaining is

18. Magnetic declination

19. Level surface is parallel to

20. *The line of collimation should be parallel to

21. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

22. *Which instrument is not used in plane table

23. The method most suitable for plotting in hilly areas is:

24. The sag correction is always

25. The bearing of the traverse line is calculated by

26. When several contours coincide, it indicates

27. Bench marks are fixed by

28. The limiting length of an offset does not depend upon

29. A traverse consists of six sides; then the sum of external angles must be

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

31. The tie line is run through the survey to

32. Which one of the following may not be classified as a natural error?

33. The smaller angle which a survey line makes with the true meridian is known as

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

35. An offset more than 15m in length is known as

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

37. The place where the reading is taken is known as

38. The last reading of leveling is always at

39. The size of the plane table is:

40. The closing error is given by

41. A series of closed contour lines on the map with higher to lower values inside them represent a

42. The quadrantal system confines the user to measure the bearings from

43. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

44. The process of bringing the vertical circle to the right of the observer is called

45. Resection is the method employed for:

46. In a closed traverse,

47. Handles of chains are made of

48. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

49. Closed contours with higher value inside represent a

50. 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