Surveying Online Test – Paper 3

1. Invar tapes are made of an alloy of

2. Permanent adjustment is carried out to

3. The error eliminated by taking the mean of both face observations is

4. The angle of intersection of a curve is the angle between

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

6. Tilting levels are used for

7. Under Survey, "working from whole to part" is done

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

9. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

10. The method most suitable for plotting in hilly areas is:

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

12. Handles of chains are made of

13. The errors due to bad ranging are

14. If the needle is truly magnetic and is not sluggish

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

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

17. You are requested to carry out a survey for the construction of a small airport in a mountainous region of Nepal. Which of the following surveying method will you choose?

18. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

19. The types of survey in which fieldwork and plotting proceed simultaneously are:

20. The difference between the most probable value of a quantity and its observed value is

21. The size of the plane table is:

22. Bench marks are fixed by

23. The quadrantal system confines the user to measure the bearings from

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

25. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

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

27. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

28. 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

29. In the direct method of contouring, the process of locating points lying on a contour is known as

30. The main difference between theodolite and level is:

31. Offset angle taken in chain survey may be

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

33. Offsets are

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

35. The levelling head of a transit theodolite consists of

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

37. *Total station is

38. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

39. "A curve of varying radius introduced between two branches of a compound curve is called

40. 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

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

42. The method of offset laying involving minimum measurement on the ground is

43. Normal tension is that pull which

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

45. The magnification of a telescope lens depends upon

46. The bearing of the traverse line is calculated by

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

48. Setting up the plane table consists of operations:

49. Positive error is caused if

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