Surveying Online Test – Paper 3

1. A 20 cm theodolite means

2. Chain surveying is used for

3. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

4. Dumpy level is used when

5. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

6. The survey stations set up during traversing with the compass should be such that

7. 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

8. The types of leveling used for Geodetic survey is

9. Two contour lines, having the same elevation

10. The instrument used to reproduce plans to a different scale is called

11. You are requested to carry out a survey for the construction of a small airport in a mountainous region of Nepal. Which of the following surveying method will you choose?

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

13. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

14. Metallic tapes are made of

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

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

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

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

19. Find the length of curve if radius of curve

20. The order of accuracy of the elevation of points obtained from a contour map is equal to

21. The theory of probability is applied to

22. The angle of intersection of the horizon mirror and the index mirror of an optical square is

23. The types of instrument generally used in the survey of gravity water supply system are:

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

25. The angle which the true meridian makes with the magnetic meridian is called

26. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

27. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

28. In a prismatic compass,

29. Level surface is parallel to

30. The chain length which is not the standard metric chain length is

31. The trunion axis or transverse axis is

32. A discrepancy is the difference between

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

34. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

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

36. In leveling across a hill, the level should be set up on

37. In survey works, declination varies from time to time and place to place. The main important variation is

38. Secular variation is an important factor because

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

40. The tie line is run through the survey to

41. The error eliminated by taking the mean of both face observations is

42. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

43. The smaller angle which a survey line makes with the true meridian is known as

44. A river is an obstacle to

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

46. *The leveling of the instrument is done such that

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

48. When the following scale is the smallest one

49. For Y level, Cooke's, and Cushing levels, the line of collimation should coincide with

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