Surveying Online Test – Paper 3

1. Plane table surveying is a graphical method of surveying in which:

2. Azimuth (direct angles) is an angle measured in

3. Parallax may be eliminated by

4. In normal condition, the difference of fore and back bearing should be?

5. The sensitivity of the bubble tube can be increased by

6. If a chain is found too short on testing, it can be adjusted by

7. 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

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

9. The tie line is run through the survey to

10. The maximum allowable limit up to which a measurement may vary from the true value is known as

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

12. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

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

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

15. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

16. Butt rods are used for measuring

17. 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

18. 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

19. 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

20. The W.C.B of a line is preferred to a quadrantal bearing merely because

21. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

22. Chain surveying is used for

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

24. Find the length of curve if radius of curve

25. "Cross-sectioning" and "Longitudinal sectioning" is

26. The Philadelphia rod is a type of

27. Normal tension is that pull which

28. An offset scale always has the zero mark at

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

30. For a line AB

31. The spacing of cross-sections in the indirect method of contouring depends upon

32. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

33. Handles are connected to the link by

34. A Cadastral Map is a map having

35. If the sights are vertical

36. 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

37. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

38. The longest chain line passing through the center of the area is known as

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

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

41. Crosshairs in a surveying telescope are fitted

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

43. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

44. The height of instrument method is

45. The process of turning the telescope about the vertical axis in a horizontal plane is known as

46. *Which instrument is not used in plane table

47. "Fiducial edge" is the working edge of

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

49. The angular and linear measurement of the part of the traverse can be checked by

50. Angle of 45° with the chain line may be set out with