Surveying Online Test – Paper 3

1. The instrument used to reproduce plans to a different scale is called

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

3. The W.C.B of a line is preferred to a quadrantal bearing merely because

4. Geodetic survey is different from plane surveying because of

5. A contour map of the area is essential before proceeding with the construction of

6. The boundary of water of a still lake is

7. Chainage is the distance measured

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

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

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

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

12. To orient a plane table without two inaccessible points, the method generally adopted is:

13. Dumpy level is used when

14. Plane table surveying is a graphical method of surveying in which:

15. 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

16. If the included angle is greater than 180°, the deflection angle is

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

18. The projection of a line on a plane parallel to the meridian is known as

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

20. The best method of interpolation of contours in the direct method of contouring is by

21. An operation for determining the relative elevations of different points on the surface of the earth is known as

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

23. Invar tapes are made of an alloy of

24. Hydrographic survey deals with the mapping of

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

27. The scale used to measure and to set out the angles is

28. The types of leveling used for Geodetic survey is

29. The function of the leveling head is

30. Limiting the length of offset depends upon

31. Handles of chains are made of

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

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

34. The telescope is said to be normal when the

35. Contour lines look to cross each other in the case of

36. In a closed traverse,

37. *Total station measures

38. The angle subtended by the long chord of a simple curve at its center is equal to

39. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

40. In a prismatic compass,

41. If the formation level is less than the ground level, the difference between them at any point will give the

42. The upper plate

43. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

44. Isogonic lines are

45. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be

46. For accurate work, in comparison to the chain, the steel band is used because it

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

48. Tilting levels are used for

49. The Normal chord of a curve should be

50. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC