Surveying Online Test – Paper 3

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

2. The size of the plane table is:

3. Working edge of alidade is called

4. Boning rod is used

5. *Which instrument is not used in plane table

6. Permanent adjustment is carried out to

7. A traverse survey can be plotted

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

9. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

10. Horizontal equivalent of a uniform slope must be

11. The stadia hairs are not used in

12. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

13. In plane table instrument for horizontal & vertical measurement without chaining

14. *The correction for refraction is given by

15. The main difference between theodolite and level is:

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

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

18. The image of the objectives formed should lie

19. Sensitivity of a level tube is expressed by

20. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

21. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

22. The longitudinal section of the surface of the bubble tube is

23. The designation of scale recommended by IS: 1491-1959 is

24. In survey works, declination varies from time to time and place to place. The main important variation is

25. A staff reading taken on a benchmark/ known elevation or change point is known as

26. The boundary of water of a still lake is

27. Axis method of traverse correction is used when

28. The theory of probability is applied to

29. Limiting the length of offset depends upon

30. The location of the contour gradient for a highway is best set out from

31. The sag correction is always

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

33. The tie line is run through the survey to

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

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

36. The resection by a two-point problem as compared to the three-point problem:

37. 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

38. A series of closed contour lines on the map with higher to lower values inside them represent a

39. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

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

41. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

42. Secular variation is an important factor because

43. Contour interval is proportional

44. Automatic level has advantages of

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

46. An example of a level surface is

47. The orientation of the table is done by

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

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

50. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°