Surveying Online Test – Paper 3

1. Limiting the length of offset depends upon

2. Choose the correct statement:

3. The minimum horizontal distance between any two consecutive contours is known as

4. The surface perpendicular to the direction of gravity is

5. Setting up the plane table consists of operations:

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

7. An offset more than 15m in length is known as

8. The number of links in a 30 m metric chain is

9. The resection by a two-point problem as compared to the three-point problem:

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

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

12. *The two-peg method is used to check the parallelism between the

13. The correction for curvature as applied to staff reading is

14. Two contour lines, having the same elevation

15. The longest chain line passing through the center of the area is known as

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

17. Size of a theodolite is specified by

18. 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

19. The horizontal distances obtained by tacheometry are corrected for

20. Pick up the odd statement

21. A benchmark (BM) is a

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

23. Local attraction at a place may be due to

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

25. Orientation is the operation of keeping the table at successive stations such that:

26. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

27. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

28. If the formation level is less than the ground level, the difference between them at any point will give the

29. Contour lines of different elevations can unite to form one line only in the case of

30. 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

31. The types of survey in which fieldwork and plotting proceed simultaneously are:

32. The contour interval depends upon

33. 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

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

35. The type of survey in which horizontal and vertical distance is measured

36. The purpose of triangulation in a chain survey is

37. Bench marks are fixed by

38. Boning rod is used

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

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

41. Subtense bar is an instrument used for the measurement of horizontal distance in

42. An example of a level surface is

43. *Error due to imperfect adjustment of plate level is termed as

44. The size of the plane table is:

45. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

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

47. When several contours coincide, it indicates

48. 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

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

50. A traverse consists of six sides; then the sum of external angles must be