Surveying Online Test – Paper 3

1. In a prismatic compass,

2. A bearing noted N45° E represents

3. The telescope is said to be normal when the

4. Pick up the odd statement

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

6. Two contour lines, having the same elevation

7. "Fiducial edge" is the working edge of

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

9. The rise and fall method

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

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

12. If a chain is found too short on testing, it can be adjusted by

13. When the following scale is the smallest one

14. For a station to be free from local attraction

15. The bearing of the traverse line is calculated by

16. The limiting length of an offset does not depend upon

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

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

19. A river is an obstacle to

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

21. Local attraction in compass surveying may be due to

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

23. 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

24. A series of closely spaced contour lines represent a

25. 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

26. The purpose of triangulation in a chain survey is

27. The main difference between an optical square and a prism square is

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

29. 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

30. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

31. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

32. The upper plate

33. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

34. Butt rods are used for measuring

35. 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

36. The levelling head of a transit theodolite consists of

37. An invert is taken when the point is

38. The boundary of water of a still lake is

39. True meridians

40. The two-point problem as compared to the three-point problem is:

41. Distomats is a type of

42. 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

43. If the magnetic bearing of the sun at noon at a place in the southern hemisphere is 150°, the magnetic declination at that place is

44. Different grades are joined together by a

45. The errors due to bad ranging are

46. The main difference between theodolite and level is:

47. The chain length which is not the standard metric chain length is

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

49. Offset angle taken in chain survey may be

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