Surveying Online Test – Paper 3

1. The function of the leveling head is

2. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

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

4. The telescope is said to be normal when the

5. The minimum horizontal distance between any two consecutive contours is known as

6. A 20 cm theodolite means

7. Handles of chains are made of

8. *The radius of curvature of the arc of the bubble tube is generally kept

9. The central angle subtended by an arc of 30m of the curve

10. Height of the instrument is equal to:

11. A Cadastral Map is a map having

12. The intercept of a staff is

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

14. For the route survey of a contour map, the method used is

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

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

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

18. Permanent adjustment is carried out to

19. Tacheometry is adopted where

20. The difference between a level line and a horizontal line is that

21. The last reading of leveling is always at

22. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

23. The chord of curve less than peg interval is known as

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

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

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

27. Handles are connected to the link by

28. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

29. Axis method of traverse correction is used when

30. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

31. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

32. The curvature and refraction corrections applied to staff readings respectively are

33. In a double-line river, contours are

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

35. A poor fix of the table is:

36. Well-conditioned triangle having an angle between

37. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

38. *The correction for refraction is given by

39. Placing the table over the station such that the station plotted on the sheet is exactly above the corresponding station on the ground is:

40. If the length of a transition curve is such that the full super elevation is attained at the junction with the circular curve, the resultant curve is known as

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

42. Hydrographic survey deals with the mapping of

43. Right face and left face readings are taken to

44. Dumpy level is used when

45. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

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

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

48. 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

49. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

50. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is