Surveying Online Test – Paper 3

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

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

3. Methods adopted for traversing are

4. Height of the instrument is equal to:

5. If the included angle is less than 180°, the deflection angle is

6. The height of instrument method is

7. The optical square is based on the principle of

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

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

10. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

11. Which of the following terms is not associated with leveling:

12. *The method of leveling used to carry out the reconnaissance of an area is

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

14. The levelling head of a transit theodolite consists of

15. The theory of probability is applied to

16. Tacheometry is adopted where

17. The intercept of a staff is

18. The dip of the needle

19. The device used in computing the horizontal and vertical distances rapidly and conveniently is

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

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

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

23. When the following scale is the smallest one

24. The quadrantal bearing of a line is determined by:

25. Direction of the closing error is given by

26. Bench marks are fixed by

27. Parallax may be eliminated by

28. The location of the contour gradient for a highway is best set out from

29. Direct distance measurement method is more suitable to measure in

30. The horizontal distances obtained by tacheometry are corrected for

31. The survey stations set up during traversing with the compass should be such that

32. *The line of collimation should be parallel to

33. 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

34. Contour interval, within the limits of a map

35. The boundary of water of a still lake is

36. Closed contours with higher value inside represent a

37. The angle that can be set by a French cross-staff is

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

39. Sensitivity of a level tube is expressed by

40. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

41. An imaginary line connecting the points of equal elevation on the ground surface is known as

42. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

43. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

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

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

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

47. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

48. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

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

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