Surveying Online Test – Paper 3

1. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for:

2. Level surface is parallel to

3. A discrepancy is the difference between

4. The magnetic north is indicated by

5. Tacheometry is adopted where

6. Which one is wrong?

7. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

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

9. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

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

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

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

13. For the construction of a highway railway

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

15. *Accuracy of 'fix' by two-point problem is

16. The image of the objectives formed should lie

17. Direct distance measurement method is more suitable to measure in

18. A 20 cm theodolite means

19. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

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

21. The two-point problem as compared to the three-point problem is:

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

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

24. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

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

26. The telescope is said to be normal when the

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

28. The tie line is run through the survey to

29. The fix of the table is good when:

30. Horizontal equivalent of a uniform slope must be

31. A level line is a

32. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

33. The length of an Engineer's chain is

34. The three-point problem can be solved by:

35. 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

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

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

38. The designation of scale recommended by IS: 1491-1959 is

39. The accuracy of measurement in chain surveying does not depend upon

40. The reciprocal leveling eliminates

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

42. 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

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

44. Contour interval, within the limits of a map

45. Invar tapes are made of an alloy of

46. In a closed traverse,

47. *For the construction of highway/railway

48. Chain surveying is used for a small area in

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

50. A leveling station is a point where: