Surveying Online Test – Paper 3

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

2. Two contour lines, having the same elevation

3. Cubic parabola is a type of

4. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

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

6. Right face and left face readings are taken to

7. Error in tacheometric surveying is due to

8. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

9. The survey stations set up during traversing with the compass should be such that

10. Find the length of curve if R=500 m, Intersection angle= 120°

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

12. The intercept of a staff is

13. The size of the plane table is:

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

15. The absence of spherical aberration in a telescope is known as

16. In leveling, the station where the back sight and foresight readings are taken is known as

17. Sensitivity of a level tube is expressed by

18. The angle which the true meridian makes with the magnetic meridian is called

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

20. Instrumental error in leveling is an error due to

21. 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

22. The whole circle bearing 338°42" converted into quadrantal form is given as

23. In tacheometric survey, the method which provides easy reading of the staff is

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

25. 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

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

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

28. Chain surveying is used for

29. *The line of collimation should be parallel to

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

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

32. A transition curve introduced between the tangent and the circular curve should

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

34. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

35. Which one is wrong?

36. In leveling across a hill, the level should be set up on

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

38. A bearing noted N45° E represents

39. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

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

41. Leveling across a river is done by

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

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

44. The optical square is based on the principle of

45. While measuring horizontal distance by stepping method we should follow

46. The method most suitable for plotting in hilly areas is:

47. A series of straight, parallel, and widely spaced contours on a map represent a

48. The contour lines are perpendicular to the

49. The direction of the steepest slope on a contour is

50. Find the length of curve if radius of curve