Surveying Online Test – Paper 3

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

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

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

4. The difference between a level line and a horizontal line is that

5. The angular and linear measurement of the part of the traverse can be checked by

6. Chainage is the distance measured

7. Sensitivity of a level tube is expressed by

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

9. Level surface is parallel to

10. If the formation level is less than the ground level, the difference between them at any point will give the

11. An example of a level surface is

12. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

13. The direction of the steepest slope on a contour is

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

15. Which one is wrong?

16. Metallic tapes are made of

17. The multiplying constant of a tacheometer is

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

19. If the included angle is greater than 180°, the deflection angle is

20. "Fiducial edge" is the working edge of

21. Azimuth and altitude of a star

22. Isogonic lines are

23. Automatic level has advantages of

24. The horizontal distances obtained by tacheometry are corrected for

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

26. The projection of a line on a plane parallel to the meridian is known as

27. A relatively fixed point of known elevation above the datum is called

28. Short offsets are measured with

29. Invar tapes are made of an alloy of

30. 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

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

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

33. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

34. Well-conditioned triangle having an angle between

35. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

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

37. A poor fix of the table is:

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

39. Boning rod is used

40. Offsets are

41. Handles of chains are made of

42. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

43. An invert is taken when the point is

44. 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

45. In the whole circle system, the bearings are measured

46. 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

47. A chain is made up of mild steel or galvanized iron wire of diameter

48. Tacheometry is best suited

49. The designation of scale recommended by IS: 1491-1959 is

50. The function of the leveling head is