Surveying Online Test – Paper 3

1. *The radius of curvature of the arc of the bubble tube is generally kept

2. The contour interval depends upon

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

4. The contour line can cross one another on a map only in the case of

5. The tie line is run through the survey to

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

7. The direct method of contouring is

8. Error in tacheometric surveying is due to

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

10. The orientation of the table is done by

11. A discrepancy is the difference between

12. An example of a level surface is

13. The projection of a line on a plane parallel to the meridian is known as

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

15. Right face and left face readings are taken to

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

17. Automatic level has advantages of

18. Positive error is caused if

19. Theodolite traverse is plotted more accurately by

20. The method of offset laying involving minimum measurement on the ground is

21. If the magnetic bearing of the sun at noon at a place in the southern hemisphere is 150°, the magnetic declination at that place is

22. A staff reading taken on a benchmark/ known elevation or change point is known as

23. *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

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

25. The types of leveling used for Geodetic survey is

26. 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

27. The W.C.B of a line is preferred to a quadrantal bearing merely because

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

29. The size of the plane table is:

30. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

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

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

33. 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

34. A contour map of the area is essential before proceeding with the construction of

35. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

36. If the needle of the compass is sluggish the type of error will be

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

38. An invert is taken when the point is

39. Which one of the following may not be classified as a natural error?

40. When several contours coincide, it indicates

41. The telescope is said to be normal when the

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

43. The levelling head of a transit theodolite consists of

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

45. Working edge of alidade is called

46. A relatively fixed point of known elevation above the datum is called

47. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

48. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

49. The three-point problem is concerned with:

50. Chainage is the distance measured