Surveying Online Test – Paper 3

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

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

3. Right face and left face readings are taken to

4. The last reading of leveling is always at

5. Boning rod is used

6. The Philadelphia rod is a type of

7. An imaginary line connecting the points of equal elevation on the ground surface is known as

8. Tilting levels are used for

9. The effect of local attraction is observed in

10. Leveling across a river is done by

11. In the case of leveling staff readings are taken by (In the case of target staff)

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

13. The shape of the vertical curve generally used is

14. A series of closed contour lines on the map with higher to lower values inside them represent a

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

16. The angle that can be set by a French cross-staff is

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

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

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

20. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

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

22. In the scale of a map is 1:25000, what does it mean:

23. For the route survey of a contour map, the method used is

24. The number of horizontal cross wires in a stadia diaphragm is

25. The process of turning the telescope about the vertical axis in a horizontal plane is known as

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

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

28. The angle of intersection of the horizon mirror and the index mirror of an optical square is

29. The horizontal distances obtained by tacheometry are corrected for

30. *Total station is

31. 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:

32. In a survey, it was recorded that Σrise = 0, then

33. Local attraction at a place may be due to

34. A building is an obstacle to

35. The types of survey used to fix property lines are

36. Contour lines

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

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

39. The optical square is based on the principle of

40. In a double-line river, contours are

41. Tellurometer uses

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

43. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

44. For a tacheometer, the additive and multiplying constants are respectively

45. Negative errors are caused in the chain when its length is

46. The sag correction is always

47. The angular and linear measurement of the part of the traverse can be checked by

48. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

49. Tacheometry is adopted where

50. 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