Surveying Online Test – Paper 3

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

2. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

3. For a station to be free from local attraction

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

5. In survey, it was recorded that Σfall = 0 then

6. Hydrographic survey deals with the mapping of

7. The survey stations set up during traversing with the compass should be such that

8. 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:

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

10. The needle is adjusted for

11. For a tacheometer, the additive and multiplying constants are respectively

12. Find the length of curve if radius of curve

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

14. A disadvantage of plane table survey is:

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

16. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

17. If n observations are taken, the accidental errors are proportional to

18. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

19. In a prismatic compass,

20. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

21. Right face and left face readings are taken to

22. Axis method of traverse correction is used when

23. Tacheometry is best suited

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

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

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

27. Offset angle taken in chain survey may be

28. Azimuth (direct angles) is an angle measured in

29. Normal tension is that pull which

30. The tie line is run through the survey to

31. In an internal focusing type of telescope, the negative lens provided is

32. Limiting the length of offset depends upon

33. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

34. A building is an obstacle to

35. The triangle formed by joining the position of the known points on plane table survey is known as:

36. Theodolite traverse is plotted more accurately by

37. 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

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

39. Handles are connected to the link by

40. 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

41. When a chain line encounters a river:

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

43. The closing error is given by

44. The Philadelphia rod is a type of

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

46. In compass surveying

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

48. Theodolite is an instrument used for measuring

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

50. *For the construction of highway/railway