Surveying Online Test – Paper 3

1. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

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

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

4. In chain survey execution, this first step taken is

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

6. A chain is made up of mild steel or galvanized iron wire of diameter

7. *For the construction of highway/railway

8. In a prismatic compass,

9. The process of turning the telescope about the vertical axis in a horizontal plane is known as

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

11. The main difference between theodolite and level is:

12. A traverse deflection angle is

13. "Cross-sectioning" and "Longitudinal sectioning" is

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

15. The stadia hairs are not used in

16. Height of instrument method of leveling, as compared to the rise and fall method, is

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

18. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

19. If the needle of the compass is sluggish the type of error will be

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

21. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

22. Find the length of curve if radius of curve

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

24. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

25. The angular and linear measurement of the part of the traverse can be checked by

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

27. A disadvantage of plane table survey is:

28. Bench marks are fixed by

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

30. Cubic parabola is a type of

31. The orientation of the table is done by

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

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

34. Indirect ranging method is adopted when two points of the chain line are:

35. The contour lines are perpendicular to the

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

37. Open cross-staff is commonly used for setting out

38. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

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

40. The included angles of the theodolite traverse are generally measured

41. Permanent adjustment is carried out to

42. A negative declination shows the magnetic meridian to the

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

44. A building is an obstacle to

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

46. The levelling head of a transit theodolite consists of

47. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

48. In the intersection method of plane tabling, the number of stations needed to be set up is:

49. The height of instrument method is

50. 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