Surveying Online Test – Paper 3

1. 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

2. The true bearing of a line can be calculated as (Where the declination is to the east.)

3. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

4. The number of links in a 30 m metric chain is

5. The levels to which the earthwork will have to be carried out is known as

6. A leveling station is a point where:

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

8. The chord of curve less than peg interval is known as

9. 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

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

11. For a tacheometer, the additive and multiplying constants are respectively

12. 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

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

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

15. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

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

17. Bowditch's rule is applied to

18. In a survey, it was recorded that Σrise = 0, then

19. A disadvantage of plane table survey is:

20. The bearing of the traverse line is calculated by

21. In a closed traverse,

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

23. Find the length of curve if radius of curve

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

25. 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?

26. For a line AB

27. The smaller angle which a survey line makes with the true meridian is known as

28. Personal error in leveling occurs due to

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

30. Contour lines look to cross each other in the case of

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

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

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

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

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

36. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

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

38. An internal focusing type of telescope is focused by the movement of

39. With the help of leveling, we measure

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

41. Theodolite traverse is plotted more accurately by

42. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

43. An instrumental error in compass survey is because

44. The height of instrument method is

45. The surface perpendicular to the direction of gravity is

46. The difference between the most probable value of a quantity and its observed value is

47. Cubic parabola is a type of

48. 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

49. *Total station is

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