Surveying Online Test – Paper 3

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

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

3. The Philadelphia rod is a type of

4. *The two-peg method is used to check the parallelism between the

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

6. In a survey, it was recorded that Σrise = 0, then

7. A transition curve introduced between the tangent and the circular curve should

8. Find the length of curve if radius of curve

9. Boning rod is used

10. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

11. The contour lines are perpendicular to the

12. The instrument used for centering the plane table accurately is:

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

14. Height of instrument method of leveling, as compared to the rise and fall method, is

15. The dip of the needle

16. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

17. The contour interval depends upon

18. 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

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

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

21. *For the construction of highway/railway

22. The size of the plane table is:

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

24. The projection of a line on a plane parallel to the meridian is known as

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

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

27. A negative declination shows the magnetic meridian to the

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

29. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

30. Horizontal equivalent of a uniform slope must be

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

32. Tellurometer uses

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

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

35. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

36. The line normal to the plumb line is known as

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

38. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

39. 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

40. With the help of leveling, we measure

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

42. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

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

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

45. Intersection is preferred to radiation when:

46. Level surface is parallel to

47. The shape of the vertical curve generally used is

48. A discrepancy is the difference between

49. A staff reading taken on a benchmark/ known elevation or change point is known as

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