Surveying Online Test – Paper 3

1. The smaller angle which a survey line makes with the true meridian is known as

2. The projection of a line on a plane perpendicular to the meridian is known as

3. The graduations in a prismatic compass are

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

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

6. Intersection is preferred to radiation when:

7. Prolongation of a chain line across an obstruction in chain surveying is done by

8. 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

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

10. The angle subtended by the long chord of a simple curve at its center is equal to

11. A 20 cm theodolite means

12. *The line of collimation should be parallel to

13. The contour line can cross one another on a map only in the case of

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

15. Two contour lines, having the same elevation

16. The strength of fix' is poor when:

17. Choose the correct statement:

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

19. For the route survey of a contour map, the method used is

20. The sensitivity of the bubble tube can be increased by

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

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

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

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

25. Limiting the length of offset depends upon

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

27. Right face and left face readings are taken to

28. Crosshairs in a surveying telescope are fitted

29. The reciprocal leveling eliminates

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

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

32. For a line AB

33. An internal focusing type of telescope is focused by the movement of

34. Closed contours with higher value inside represent a

35. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

36. A traverse deflection angle is

37. A Cadastral Map is a map having

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

39. The Philadelphia rod is a type of

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

41. Chainage is the distance measured

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

43. The types of survey used to fix property lines are

44. If the sights are vertical

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

46. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

47. In leveling across a hill, the level should be set up on

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

49. 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

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