Surveying Online Test – Paper 3

1. The advantage of anallatic lens is

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

3. Isogonic lines are

4. In a double-line river, contours are

5. The amount of correction due to local attraction at a place

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

7. 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

8. The method of tacheometry in which the stadia hair intercept is fixed is known as

9. The purpose of triangulation in a chain survey is

10. Least count is given by

11. The magnification of a telescope lens depends upon

12. Different grades are joined together by a

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

14. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

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

16. Chainage is the distance measured

17. *The two-peg method is used to check the parallelism between the

18. Chain surveying is used for a small area in

19. Find the length of curve if radius of curve

20. A series of closely spaced contour lines represent a

21. A Cadastral Map is a map having

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

23. A straight line tangential to the longitudinal curve of the level tube at its center is known as

24. The three-point problem can be solved by:

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

26. Well-conditioned triangle having an angle between

27. Normal tension is that pull which

28. Crosshairs in a surveying telescope are fitted

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

30. The length of an Engineer's chain is

31. Short offsets are measured with

32. 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

33. Pick up the odd statement

34. Open cross-staff is commonly used for setting out

35. The last reading of leveling is always at

36. Distomats is a type of

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

38. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

39. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

40. Find the contour interval for the map, 1: 25000 in IS & FPS

41. Direction of the closing error is given by

42. *The observed reading on a leveling staff was 3.545 m. If the staff was 0.150m off from the original ground level, what should be the correct reading?

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

44. The magnetic north is indicated by

45. The method of offset laying involving minimum measurement on the ground is

46. For a station to be free from local attraction

47. Which of the following terms is not associated with leveling:

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

49. 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

50. Theodolite traverse is plotted more accurately by