Surveying Online Test – Paper 3

1. Chain surveying is used for

2. The absence of chromatic aberration in a telescope is known as

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

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

5. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

6. Handles of chains are made of

7. The contour interval depends upon

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

9. Direction of the closing error is given by

10. The closing error is given by

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

12. Overturning of vehicles on a curve can be avoided by using

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

14. The perpendicular distance of the midpoint of the line from the reference meridian is known as

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

16. Find the length of curve if radius of curve

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

18. The limiting length of an offset does not depend upon

19. The order of accuracy of the elevation of points obtained from a contour map is equal to

20. 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

21. Choose the correct statement:

22. Offset angle taken in chain survey may be

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

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

25. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

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

27. The absence of spherical aberration in a telescope is known as

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

29. A series of straight, parallel, and widely spaced contours on a map represent a

30. *Which instrument is not used in plane table

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

32. The whole circle bearing 338°42" converted into quadrantal form is given as

33. Which one is the simplest survey?

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

35. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

36. A leveling station is a point where:

37. A transition curve introduced between the tangent and the circular curve should

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

39. Tacheometry is best suited

40. If a chain is found too short on testing, it can be adjusted by

41. The horizontal distances obtained by tacheometry are corrected for

42. A negative declination shows the magnetic meridian to the

43. Methods adopted for traversing are

44. *The leveling of the instrument is done such that

45. 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

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

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

48. The tie line is run through the survey to

49. Right face and left face readings are taken to

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