Surveying Online Test – Paper 3

1. The levelling head of a transit theodolite consists of

2. In the whole circle system, the bearings are measured

3. The purpose of triangulation in a chain survey is

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

5. Natural error in leveling is caused due to

6. A poor fix of the table is:

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

8. The stadia hairs are not used in

9. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

10. Short offsets are measured with

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

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

13. Well-conditioned triangle having an angle between

14. The contour interval depends upon

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

16. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

17. Metallic tapes are made of

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

19. Parallax may be eliminated by

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

21. Placing the table over the station such that the station plotted on the sheet is exactly above the corresponding station on the ground is:

22. Intersection is preferred to radiation when:

23. In a closed traverse by included angles, the sum of measured interior angles should be equal to

24. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

25. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

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

27. If the temperature increases, the sensitivity of a bubble tube

28. The boundary of water of a still lake is

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

30. The "point of tangency" of a simple circular curve is

31. If the included angle is greater than 180°, the deflection angle is

32. Isogonic lines are

33. The principle of surveying to prevent the accumulation of errors is

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

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

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

37. The number of links in a 30 m metric chain is

38. The contour lines are perpendicular to the

39. The magnification of a telescope lens depends upon

40. With the help of leveling, we measure

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

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

43. The orientation of the table is done by

44. The outer spindle attached to the lower plate in a transit theodolite is known as

45. The method of tacheometry in which the stadia hair intercept is fixed is known as

46. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

47. The shape of the vertical curve generally used is

48. The process of bringing the vertical circle to the right of the observer is called

49. Bowditch's rule is applied to

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