Surveying Online Test – Paper 3

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

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

3. The angle of intersection of a curve is the angle between

4. Find the length of curve if R=500 m, Intersection angle= 120°

5. Dumpy level is used when

6. Size of a theodolite is specified by

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

8. The horizontal distances obtained by tacheometry are corrected for

9. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

10. Handles are connected to the link by

11. In the direct method of contouring, the process of locating points lying on a contour is known as

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

13. 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

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

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

16. *The observed reading on a leveling staff was 3.545 m. If the staff was 0.150m off from the original ground level, what should be the correct reading?

17. An anallatic lens is provided in a tacheometer to measure the horizontal distance.

18. A series of closely spaced contour lines represent a

19. A bearing noted N45° E represents

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

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

22. The maximum allowable limit up to which a measurement may vary from the true value is known as

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

24. In a closed traverse by included angles, the sum of measured interior angles should be equal to

25. 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

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

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

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

29. The quadrantal bearing of a line is determined by:

30. The three-point problem is concerned with:

31. Level surface is parallel to

32. *Which instrument is not used in plane table

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

34. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

35. Hydrographic survey deals with the mapping of

36. Well-conditioned triangle having an angle between

37. True meridians

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

39. The included angles of the theodolite traverse are generally measured

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

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

42. The magnetic north is indicated by

43. In the intersection method of plane tabling, the number of stations needed to be set up is:

44. When a chain line encounters a river:

45. A series of closed contour lines on the map with higher to lower values inside them represent a

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

47. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

48. 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

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

50. A level tube is used to make the line of sight horizontal. It is filled with