Surveying Online Test – Paper 3

1. The angle which the true meridian makes with the magnetic meridian is called

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

3. The two-point problem as compared to the three-point problem is:

4. Which one of the following is not a personal error?

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

6. The bearing of the traverse line is calculated by

7. The errors due to bad ranging are

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

9. The angle that can be set by a French cross-staff is

10. An invert is taken when the point is

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

12. Area of triangle joining three corner points in comparison to the circle same three points:

13. The theory of probability is applied to

14. A building is an obstacle to

15. The contour lines merge or cross one another on the map in the case of

16. Find the contour interval for the map, 1: 25000 in IS & FPS

17. Secular variation is an important factor because

18. The angular error of closure or summation error should not exceed (Where N is the number of stations or sides.)

19. For a line AB

20. A diagonal eyepiece is provided with a

21. The minimum horizontal distance between any two consecutive contours is known as

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

23. A discrepancy is the difference between

24. The central angle subtended by an arc of 30m of the curve

25. The accuracy of measurement in chain surveying does not depend upon

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

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

28. Crosshairs in a surveying telescope are fitted

29. *The instrument used to measure horizontal and vertical angle is

30. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

31. Parallax may be eliminated by

32. The types of survey used to fix property lines are

33. The height of instrument method is

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

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

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

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

38. 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

39. Methods adopted for traversing are

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

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

42. In leveling, the station where the back sight and foresight readings are taken is known as

43. True meridians

44. For a station to be free from local attraction

45. Instrumental error in leveling is an error due to

46. An offset more than 15m in length is known as

47. Find the length of curve if R=500 m, Intersection angle= 120°

48. 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

49. Choose the correct statement:

50. Bench marks are fixed by