Surveying Online Test – Paper 3

1. Height of the instrument is equal to:

2. In a double-line river, contours are

3. Find the length of curve if radius of curve

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

5. Intersection is preferred to radiation when:

6. The types of leveling used for Geodetic survey is

7. Which one is wrong?

8. Invar tapes are made of an alloy of

9. The correction for curvature as applied to staff reading is

10. If the needle of the compass is sluggish the type of error will be

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

12. The perpendicular distance of the midpoint of the line from the reference meridian is known as

13. Which one of the following is not a personal error?

14. The intercept of a staff is

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

16. The needle is adjusted for

17. True meridians

18. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

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

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

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

22. A series of straight, parallel, and widely spaced contours on a map represent a

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

24. The sag correction is always

25. 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

26. Dumpy level is used when

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

28. If the included angle is less than 180°, the deflection angle is

29. A series of closely spaced contour lines represent a

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

31. The types of survey used to fix property lines are

32. Crosshairs in a surveying telescope are fitted

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

34. An imaginary line connecting the points of equal elevation on the ground surface is known as

35. 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

36. In an internal focusing type of telescope, the negative lens provided is

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

38. The tacheometric method is a more suitable method for preparing the contour map of

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

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

41. In a closed traverse, the algebraic sum of deflection angles is

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

43. Which of the following instruments is generally used for baseline measurements?

44. Short offsets are measured with

45. The quadrantal system confines the user to measure the bearings from

46. Find the R.F. of 1cm = 5m

47. For accurate work, in comparison to the chain, the steel band is used because it

48. The horizontal distances obtained by tacheometry are corrected for

49. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

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