Surveying Online Test – Paper 3

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

2. The optical square is based on the principle of

3. Distomats is a type of

4. The method of leveling in which the plane table is set at only one station to take detail is known as:

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

6. Ranging is the process of

7. The instrument used for measuring area on a contour map is

8. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

9. 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

10. A discrepancy is the difference between

11. A Cadastral Map is a map having

12. The image of the objectives formed should lie

13. An example of a level surface is

14. The telescope is said to be normal when the

15. Local attraction at a place may be due to

16. In a double-line river, contours are

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

18. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

19. The tacheometric method is a more suitable method for preparing the contour map of

20. Least count is given by

21. If the sights are vertical

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

23. 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

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

25. For the construction of a highway railway

26. Size of a theodolite is specified by

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

28. The prismatic compass and the surveyor's compass respectively give

29. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

30. The limiting length of an offset does not depend upon

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

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

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

34. Revolving of the telescope of a theodolite in a horizontal plane is

35. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

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

37. The dip of the needle

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

39. The last reading of leveling is always at

40. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

41. The difference between the most probable value of a quantity and its observed value is

42. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

43. Local attraction in compass surveying may be due to

44. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

45. The fundamental lines of transit of the theodolite are

46. 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

47. With the help of leveling, we measure

48. Leveling across a river is done by

49. Staff intercept means

50. For any point on the surface with a given inclination, the contour gradient possible is