Surveying Online Test – Paper 3

1. Under Survey, "working from whole to part" is done

2. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

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

4. The best method of interpolation of contours in the direct method of contouring is by

5. The vertical distance between any two consecutive contours is known as

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

7. If the sights are vertical

8. The difference between a level line and a horizontal line is that

9. The magnification of a telescope lens depends upon

10. 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

11. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

12. Two contour lines, having the same elevation

13. The graduations in a prismatic compass are

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

15. Tellurometer uses

16. For a line AB

17. Butt rods are used for measuring

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

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

20. 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

21. In plane table instrument for horizontal & vertical measurement without chaining

22. 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

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

24. Limiting the length of offset depends upon

25. A disadvantage of plane table survey is:

26. 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

27. Chain surveying is used for

28. The function of the leveling head is

29. Invar tapes are made of an alloy of

30. The three-point problem can be solved by:

31. Permanent adjustment is carried out to

32. A poor fix of the table is:

33. A river is an obstacle to

34. Contour interval, within the limits of a map

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

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

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

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

39. The size of the plane table is:

40. A bearing noted N45° E represents

41. Least count is given by

42. The types of leveling used for Geodetic survey is

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

44. The instrument used to reproduce plans to a different scale is called

45. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

46. Azimuth and altitude of a star

47. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

48. 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

49. Tilting levels are used for

50. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for: