Surveying Online Test – Paper 3

1. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

2. The function of the leveling head is

3. Under Survey, "working from whole to part" is done

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

5. A river is an obstacle to

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

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

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

9. Contour interval, within the limits of a map

10. The theory of probability is applied to

11. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

12. Staff intercept means

13. The advantage of anallatic lens is

14. 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

15. Limiting the length of offset depends upon

16. *Total station measures

17. The main difference between theodolite and level is:

18. Orientation is the operation of keeping the table at successive stations such that:

19. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

20. Magnetic declination

21. The fix of the table is good when:

22. For any point on the surface with a given inclination, the contour gradient possible is

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

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

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

26. The magnetic north is indicated by

27. A leveling station is a point where:

28. The needle is adjusted for

29. 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

30. Size of a theodolite is specified by

31. The effect of local attraction is observed in

32. Theodolite traverse is plotted more accurately by

33. A traverse deflection angle is

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

35. When the following scale is the smallest one

36. The spacing of cross-sections in the indirect method of contouring depends upon

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

38. Contours are used to determine

39. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

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

41. The types of errors that are of a cumulative nature and can be corrected are known as

42. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for:

43. In compass surveying

44. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

45. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

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

47. The Normal chord of a curve should be

48. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

49. The horizontal distances obtained by tacheometry are corrected for

50. The angle which the true meridian makes with the magnetic meridian is called