Surveying Online Test – Paper 3

1. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

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

3. Geodetic survey is different from plane surveying because of

4. The inclination of the needle to the horizontal towards the pole is called

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

6. The instrument used for centering the plane table accurately is:

7. The size of the plane table is:

8. If the sights are vertical

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

10. The spacing of cross-sections in the indirect method of contouring depends upon

11. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for:

12. Direction of the closing error is given by

13. Which of the following instruments is generally used for baseline measurements?

14. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

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

16. The foremost work to be executed while traversing with a compass is

17. The magnetic north is indicated by

18. Compensating errors in chaining or other surveys are

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

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

21. The main difference between theodolite and level is:

22. The closing error is given by

23. Resection is the method employed for:

24. A 30 m long chain when tested should not show errors exceeding

25. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

26. A 20 cm theodolite means

27. Size of a theodolite is specified by

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

29. A bearing noted N45° E represents

30. The angle of intersection of the horizon mirror and the index mirror of an optical square is

31. The types of instrument generally used in the survey of gravity water supply system are:

32. The last reading of leveling is always at

33. Right face and left face readings are taken to

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

35. In normal condition, the difference of fore and back bearing should be?

36. The contour interval depends upon

37. The direct method of contouring is

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

39. The method of leveling in which the plane table is set at only one station to take detail is known as:

40. For a station to be free from local attraction

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

42. An instrumental error in compass survey is because

43. A poor fix of the table is:

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

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

46. The two-point problem and three-point problems are methods of:

47. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

48. Magnetic declination

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

50. Offset angle taken in chain survey may be