Surveying Online Test – Paper 3

1. In normal condition, the difference of fore and back bearing should be?

2. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

3. The theory of probability is applied to

4. *Accuracy of 'fix' by two-point problem is

5. Which one is the simplest survey?

6. An offset scale always has the zero mark at

7. Secular variation is an important factor because

8. Actually, which is not the method of plane tabling?

9. The range of accuracy in measuring distance by EDM with respect to ODM is

10. Instrumental error in leveling is an error due to

11. The strength of fix' is poor when:

12. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

13. Crosshairs in a surveying telescope are fitted

14. An example of a level surface is

15. Diurnal variation depends upon

16. Chainage is the distance measured

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

18. 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:

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

20. While measuring horizontal distance by stepping method we should follow

21. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

22. The optical square is based on the principle of

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

24. Staff intercept means

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

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

27. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

28. When a chain line encounters a river:

29. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

30. Hydrographic survey deals with the mapping of

31. Personal error in leveling occurs due to

32. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

33. The number of horizontal cross wires in a stadia diaphragm is

34. The graduations in a prismatic compass are

35. The difference between the most probable value of a quantity and its observed value is

36. Negative errors are caused in the chain when its length is

37. The purpose of triangulation in a chain survey is

38. When several contours coincide, it indicates

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

40. Offsets are

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

42. A 30 m long chain when tested should not show errors exceeding

43. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

44. For Y level, Cooke's, and Cushing levels, the line of collimation should coincide with

45. For the construction of a highway railway

46. A Cadastral Map is a map having

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

48. Tellurometer uses

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

50. *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?