Surveying Online Test – Paper 3

1. The position of a point can be fixed more accurately by

2. Dumpy level is used when

3. A benchmark (BM) is a

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

5. The direct method of contouring is

6. A leveling station is a point where:

7. Local attraction in compass surveying may be due to

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

9. In plane table instrument for horizontal & vertical measurement without chaining

10. The triangle formed by joining the position of the known points on plane table survey is known as:

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

12. The type of survey in which horizontal and vertical distance is measured

13. Right face and left face readings are taken to

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

15. The inclination of the needle to the horizontal towards the pole is called

16. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

17. Isogonic lines are

18. The method most suitable for plotting in hilly areas is:

19. The orientation of the table is done by

20. Automatic level has advantages of

21. Direct distance measurement method is more suitable to measure in

22. Indirect ranging method is adopted when two points of the chain line are:

23. The place where the reading is taken is known as

24. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

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

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

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

28. Geodetic survey is different from plane surveying because of

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

30. Different grades are joined together by a

31. Two contour lines, having the same elevation

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

33. Level surface is parallel to

34. Offsets are

35. 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

36. In the case of leveling staff readings are taken by (In the case of target staff)

37. The contour line can cross one another on a map only in the case of

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

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

40. The purpose of triangulation in a chain survey is

41. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

42. A level line is a

43. The theory of probability is applied to

44. "Fiducial edge" is the working edge of

45. The errors due to bad ranging are

46. Plane table surveying is a graphical method of surveying in which:

47. True meridians

48. *Total station is

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

50. Chain surveying is used for a small area in