Surveying Online Test – Paper 3

1. A diagonal eyepiece is provided with a

2. Dumpy level is used when

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

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

5. The types of survey in which fieldwork and plotting proceed simultaneously are:

6. Staff intercept means

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

8. The method of tacheometry in which the stadia hair intercept is fixed is known as

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

10. Angle of 45° with the chain line may be set out with

11. Short offsets are measured with

12. Area of triangle joining three corner points in comparison to the circle same three points:

13. An operation for determining the relative elevations of different points on the surface of the earth is known as

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

15. The fix of the table is good when:

16. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

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

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

19. *The method of leveling used to carry out the reconnaissance of an area is

20. 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

21. A level line is a

22. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

23. Methods adopted for traversing are

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

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

26. The strength of the fix of a plane table is:

27. The optical square is based on the principle of

28. 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?

29. *Error due to imperfect adjustment of plate level is termed as

30. Ranging is the process of

31. Offset angle taken in chain survey may be

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

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

34. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

35. The dip of the needle

36. Tellurometer uses

37. The needle is adjusted for

38. The "point of tangency" of a simple circular curve is

39. The method of offset laying involving minimum measurement on the ground is

40. 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

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

42. If the temperature increases, the sensitivity of a bubble tube

43. Prolongation of a chain line across an obstruction in chain surveying is done by

44. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

45. Any arbitrarily assumed level line from which vertical distances are measured is known as

46. Bench marks are fixed by

47. *The line of collimation should be parallel to

48. Negative errors are caused in the chain when its length is

49. The distance between terminal points computed from a subsidiary traverse run between them is known as

50. A transition curve introduced between the tangent and the circular curve should