Surveying Online Test – Paper 3

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

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

3. Handles of chains are made of

4. The method of tacheometry in which the stadia hair intercept is fixed is known as

5. An offset scale always has the zero mark at

6. Geodetic survey is different from plane surveying because of

7. The order of accuracy of the elevation of points obtained from a contour map is equal to

8. Horizontal equivalent of a uniform slope must be

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

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

11. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

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

13. The distance between terminal points computed from a subsidiary traverse run between them is known as

14. The contour interval depends upon

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

16. Two contour lines, having the same elevation

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

18. The direction of the steepest slope on a contour is

19. Negative errors are caused in the chain when its length is

20. Parallax may be eliminated by

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

22. Handles are connected to the link by

23. 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

24. 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

25. Personal error in leveling occurs due to

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

27. The orientation of the table is done by

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

29. *Total station is

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

31. A level tube is used to make the line of sight horizontal. It is filled with

32. An operation for determining the relative elevations of different points on the surface of the earth is known as

33. The magnetic north is indicated by

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

35. *The line of collimation should be parallel to

36. To orient a plane table without two inaccessible points, the method generally adopted is:

37. Prolongation of a chain line across an obstruction in chain surveying is done by

38. The types of instrument generally used in the survey of gravity water supply system are:

39. The range of accuracy in measuring distance by EDM with respect to ODM is

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

41. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

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

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

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

45. In the scale of a map is 1:25000, what does it mean:

46. Chain surveying is used for

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

48. Bowditch's rule is applied to

49. The shape of the vertical curve generally used is

50. A relatively fixed point of known elevation above the datum is called