Surveying Online Test – Paper 3

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

2. A building is an obstacle to

3. The boundary of water of a still lake is

4. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

5. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

6. The stadia hairs are not used in

7. Hydrographic survey deals with the mapping of

8. A leveling station is a point where:

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

10. 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

11. Obstacle to ranging but not chaining is

12. The telescope is said to be normal when the

13. The bearing of the traverse line is calculated by

14. Tilting levels are used for

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

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

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

18. In tacheometric survey, the method which provides easy reading of the staff is

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

20. The optical square is based on the principle of

21. The magnetic north is indicated by

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

23. The quadrantal system confines the user to measure the bearings from

24. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

25. Which one of the following may not be classified as personal error

26. The horizontal distances obtained by tacheometry are corrected for

27. Theodolite traverse is plotted more accurately by

28. Axis method of traverse correction is used when

29. The contour lines are perpendicular to the

30. In the scale of a map is 1:25000, what does it mean:

31. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

32. Automatic level has advantages of

33. A diagonal eyepiece is provided with a

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

35. Error in tacheometric surveying is due to

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

37. Distomats is a type of

38. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

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

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

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

42. The advantage of anallatic lens is

43. The angle of intersection of the horizon mirror and the index mirror of an optical square is

44. 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:

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

46. The rise and fall method of leveling provides a complete check on

47. Contour lines

48. If the sights are vertical

49. A traverse consists of six sides; then the sum of external angles must be

50. A disadvantage of plane table survey is: