Surveying Online Test – Paper 3

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

2. Secular variation is an important factor because

3. The effect of local attraction is observed in

4. The bearing of the traverse line is calculated by

5. Handles of chains are made of

6. Choose the correct statement:

7. The process of bringing the vertical circle to the right of the observer is called

8. For a line AB

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

10. Positive error is caused if

11. Which one of the following may not be classified as personal error

12. The advantage of anallatic lens is

13. Open cross-staff is commonly used for setting out

14. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

15. The length of the perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

16. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

17. A discrepancy is the difference between

18. A Cadastral Map is a map having

19. The scale used to measure and to set out the angles is

20. Which one of the following may not be classified as a natural error?

21. The "point of the curve" of a simple circular curve is

22. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

23. The device used in computing the horizontal and vertical distances rapidly and conveniently is

24. 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

25. The Philadelphia rod is a type of

26. The vertical distance between any two consecutive contours is known as

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

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

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

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

31. The height of instrument method is

32. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

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

34. 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

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

36. The outer spindle attached to the lower plate in a transit theodolite is known as

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

38. A benchmark (BM) is a

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

40. 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

41. The resection by a two-point problem as compared to the three-point problem:

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

43. 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

44. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

45. A building is an obstacle to

46. The levelling head of a transit theodolite consists of

47. An offset more than 15m in length is known as

48. A diagonal eyepiece is provided with a

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

50. The W.C.B of a line is preferred to a quadrantal bearing merely because