Surveying Online Test – Paper 3

1. A curve consists of two areas of different radii bending in the same direction and lying on the same side of their common tangent and their centers being on the same side of the curve is known as a

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

3. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

4. Overturning of vehicles on a curve can be avoided by using

5. The process of bringing the vertical circle to the right of the observer is called

6. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

7. In leveling across a hill, the level should be set up on

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

9. Magnetic declination

10. Tilting levels are used for

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

12. The inclination of the needle to the horizontal towards the pole is called

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

14. Plane table survey is considered good as compared to other surveys since:

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

16. Invar tapes are made of an alloy of

17. The fundamental lines of transit of the theodolite are

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

19. The device used in computing the horizontal and vertical distances rapidly and conveniently is

20. The contour lines are perpendicular to the

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

22. Parallax may be eliminated by

23. For the construction of a highway railway

24. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

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

26. The size of the plane table is:

27. Personal error in leveling occurs due to

28. The theory of probability is applied to

29. The horizontal distances obtained by tacheometry are corrected for

30. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

31. Leveling across a river is done by

32. The prismatic compass and the surveyor's compass respectively give

33. Secular variation is an important factor because

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

35. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

36. An internal focusing type of telescope is focused by the movement of

37. Which one is wrong?

38. The function of the leveling head is

39. Orientation is the operation of keeping the table at successive stations such that:

40. *For the construction of highway/railway

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

42. Theodolite is an instrument used for measuring

43. Azimuth and altitude of a star

44. The sag correction is always

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

46. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

47. The instrument used for measuring area on a contour map is

48. 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

49. Crosshairs in a surveying telescope are fitted

50. The image of the objectives formed should lie