Surveying Online Test – Paper 3

1. The "point of tangency" of a simple circular curve is

2. "Cross-sectioning" and "Longitudinal sectioning" is

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

4. The perpendicular distance of the midpoint of the line from the reference meridian is known as

5. The chain length which is not the standard metric chain length is

6. The line normal to the plumb line is known as

7. The longitudinal section of the surface of the bubble tube is

8. Local attraction at a place may be due to

9. In a survey, it was recorded that Σrise = 0, then

10. The order of accuracy of the elevation of points obtained from a contour map is equal to

11. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

12. Two contour lines, having the same elevation

13. Angle of 45° with the chain line may be set out with

14. Invar tapes are made of an alloy of

15. The length of the perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

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

17. A negative declination shows the magnetic meridian to the

18. Find the R.F. of 1cm = 5m

19. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

20. The area of the earth's surface is taken into account only if the extent of the survey is more than

21. Find the length of curve if radius of curve

22. Instrumental error in leveling is an error due to

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

24. Permanent adjustment is carried out to

25. An example of a level surface is

26. The scale used to measure and to set out the angles is

27. Error in tacheometric surveying is due to

28. The boundary of water of a still lake is

29. 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

30. The errors due to bad ranging are

31. A benchmark (BM) is a

32. Setting up the plane table consists of operations:

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

34. The chord of curve less than peg interval is known as

35. The Philadelphia rod is a type of

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

37. The range of accuracy in measuring distance by EDM with respect to ODM is

38. Indirect ranging method is adopted when two points of the chain line are:

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

40. To orient a plane table without two inaccessible points, the method generally adopted is:

41. An invert is taken when the point is

42. The theory of probability is applied to

43. The function of the leveling head is

44. 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

45. Short offsets are measured with

46. The contour interval depends upon

47. Pick up the odd statement

48. The true bearing of a line can be calculated as (Where the declination is to the east.)

49. Tacheometry is best suited

50. For a line AB