Surveying Online Test – Paper 3

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

2. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

3. A 20 cm theodolite means

4. The sag correction is always

5. The range of accuracy in measuring distance by EDM with respect to ODM is

6. The main difference between an optical square and a prism square is

7. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

8. Chainage is the distance measured

9. In a double-line river, contours are

10. Parallax may be eliminated by

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

12. The reciprocal leveling eliminates

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

14. The process of turning the telescope about the vertical axis in a horizontal plane is known as

15. The absence of spherical aberration in a telescope is known as

16. The contour line can cross one another on a map only in the case of

17. Under Survey, "working from whole to part" is done

18. Setting up the plane table consists of operations:

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

20. The intercept of a staff is

21. Choose the correct statement:

22. Contours are used to determine

23. A Cadastral Map is a map having

24. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

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

26. Contour lines of different elevations can unite to form one line only in the case of

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

28. Invar tapes are made of an alloy of

29. The size of the plane table is:

30. The longitudinal section of the surface of the bubble tube is

31. Least count is given by

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

33. 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

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

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

36. The principle of surveying to prevent the accumulation of errors is

37. The types of leveling used for Geodetic survey is

38. The method most suitable for plotting in hilly areas is:

39. In normal condition, the difference of fore and back bearing should be?

40. Azimuth (direct angles) is an angle measured in

41. The closing error is given by

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

43. The purpose of triangulation in a chain survey is

44. In the scale of a map is 1:25000, what does it mean:

45. 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

46. The area of the earth's surface is taken into account only if the extent of the survey is more than

47. The method of leveling in which the plane table is set at only one station to take detail is known as:

48. Dumpy level is used when

49. The projection of a line on a plane perpendicular to the meridian is known as

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