Surveying Online Test – Paper 3

1. In leveling, the station where the back sight and foresight readings are taken is known as

2. The contour lines merge or cross one another on the map in the case of

3. The size of the plane table is:

4. In survey, it was recorded that Σfall = 0 then

5. 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

6. The rise and fall method of leveling provides a complete check on

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

8. In tacheometric survey, the method which provides easy reading of the staff is

9. In a double-line river, contours are

10. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

11. Bowditch's rule is applied to

12. 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

13. Size of a theodolite is specified by

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

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

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

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

18. A river is an obstacle to

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

20. Obstacle to ranging but not chaining is

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

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

23. Metallic tapes are made of

24. Actually, which is not the method of plane tabling?

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

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

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

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

29. The tacheometric method is a more suitable method for preparing the contour map of

30. 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

31. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

32. Chainage is the distance measured

33. In an internal focusing type of telescope, the negative lens provided is

34. The representation of general topography of a very flat terrain is possible only

35. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

36. Contour interval is proportional

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

38. The horizontal distances obtained by tacheometry are corrected for

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

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

41. *Total station is

42. The direct method of contouring is

43. 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

44. The magnification of a telescope lens depends upon

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

46. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

47. The type of survey in which horizontal and vertical distance is measured

48. Methods adopted for traversing are

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

50. For a line AB