Surveying Online Test – Paper 3

1. True meridians

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

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

4. The optical square is based on the principle of

5. Personal error in leveling occurs due to

6. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

7. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

8. Ranging is the process of

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

10. Methods adopted for traversing are

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

12. A building is an obstacle to

13. The needle is adjusted for

14. The strength of the fix of a plane table is:

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

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

17. *Due to the curvature of the earth, objects look

18. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

19. If a chain is found too short on testing, it can be adjusted by

20. A straight line tangential to the longitudinal curve of the level tube at its center is known as

21. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

22. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

23. In survey, it was recorded that Σfall = 0 then

24. If the length of a transition curve is such that the full super elevation is attained at the junction with the circular curve, the resultant curve is known as

25. Which one is the simplest survey?

26. The instrument used for centering the plane table accurately is:

27. Metallic tapes are made of

28. Chain surveying is used for

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

31. The graduations in a prismatic compass are

32. A level tube is used to make the line of sight horizontal. It is filled with

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

34. The contour lines are perpendicular to the

35. When the following scale is the smallest one

36. The type of survey in which horizontal and vertical distance is measured

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

38. The trunion axis or transverse axis is

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

40. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

41. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

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

43. A leveling station is a point where:

44. In a double-line river, contours are

45. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

46. Diurnal variation depends upon

47. The height of instrument method is

48. Size of a theodolite is specified by

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

50. Contour lines look to cross each other in the case of