Surveying Online Test – Paper 3

1. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

2. The types of errors that are of a cumulative nature and can be corrected are known as

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

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

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

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

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

8. Offsets are

9. Tacheometry is best suited

10. *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

11. The amount of correction due to local attraction at a place

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

13. The Philadelphia rod is a type of

14. *Accuracy of 'fix' by two-point problem is

15. The angle of intersection of a curve is the angle between

16. Tellurometer uses

17. An offset scale always has the zero mark at

18. The magnetic north is indicated by

19. A river is an obstacle to

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

21. *Total station is

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

23. A traverse survey can be plotted

24. The fix of the table is good when:

25. Chainage is the distance measured

26. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

27. Area of triangle joining three corner points in comparison to the circle same three points:

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

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

30. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

31. Instrumental error in leveling is an error due to

32. The place where the reading is taken is known as

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

34. An anallatic lens is provided in a tacheometer to measure the horizontal distance.

35. For a station to be free from local attraction

36. While measuring horizontal distance by stepping method we should follow

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

38. Normal tension is that pull which

39. The rise and fall method

40. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

41. 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

42. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

43. The contour interval depends upon

44. Closed contours with higher value inside represent a

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

46. Chain surveying is used for a small area in

47. Any arbitrarily assumed level line from which vertical distances are measured is known as

48. Intersection is preferred to radiation when:

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

50. In leveling, the station where the back sight and foresight readings are taken is known as