Surveying Online Test – Paper 3

1. The location of the contour gradient for a highway is best set out from

2. Find the R.F. of 1cm = 5m

3. Boning rod is used

4. The surface perpendicular to the direction of gravity is

5. The direction of the steepest slope on a contour is

6. Revolving of the telescope of a theodolite in a horizontal plane is

7. Tacheometry is adopted where

8. Resection is the method employed for:

9. A series of closely spaced contour lines represent a

10. In a closed traverse, the algebraic sum of deflection angles is

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

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

13. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

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

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

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

17. In the case of a telescopic alidade, the adjustment done is

18. A negative declination shows the magnetic meridian to the

19. The types of instrument generally used in the survey of gravity water supply system are:

20. Subtense bar is an instrument used for the measurement of horizontal distance in

21. Intersection is preferred to radiation when:

22. The length of the perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

23. An invert is taken when the point is

24. The errors due to bad ranging are

25. The function of the leveling head is

26. The levels to which the earthwork will have to be carried out is known as

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

28. Offset angle taken in chain survey may be

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

30. The "point of tangency" of a simple circular curve is

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

32. When a chain line encounters a river:

33. Compensating errors in chaining or other surveys are

34. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

35. In the whole circle system, the bearings are measured

36. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

37. Metallic tapes are made of

38. Size of a theodolite is specified by

39. Chain surveying is used for a small area in

40. Personal error in leveling occurs due to

41. The image of the objectives formed should lie

42. If the included angle is less than 180°, the deflection angle is

43. The maximum allowable limit up to which a measurement may vary from the true value is known as

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

45. The curvature and refraction corrections applied to staff readings respectively are

46. Contour lines of different elevations can unite to form one line only in the case of

47. The distance between terminal points computed from a subsidiary traverse run between them is known as

48. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

49. The true bearing of a line can be calculated as (Where the declination is to the east.)

50. Methods adopted for traversing are