Surveying Online Test – Paper 3

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

2. The angle of intersection of a curve is the angle between

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

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

5. *The radius of curvature of the arc of the bubble tube is generally kept

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

7. The surface perpendicular to the direction of gravity is

8. The errors due to bad ranging are

9. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

10. A level line is a

11. The magnetic north is indicated by

12. Placing the table over the station such that the station plotted on the sheet is exactly above the corresponding station on the ground is:

13. A contour map of the area is essential before proceeding with the construction of

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

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

16. The scale used to measure and to set out the angles is

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

18. Tilting levels are used for

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

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

21. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

22. Theodolite is an instrument used for measuring

23. In the direct method of contouring, the process of locating points lying on a contour is known as

24. The image of the objectives formed should lie

25. Obstacle to ranging but not chaining is

26. Positive error is caused if

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

28. The horizontal distances obtained by tacheometry are corrected for

29. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

30. Cubic parabola is a type of

31. 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

32. A poor fix of the table is:

33. Chainage is the distance measured

34. The last reading of leveling is always at

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

36. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

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

38. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

39. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

40. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

41. An operation for determining the relative elevations of different points on the surface of the earth is known as

42. 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

43. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

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

45. The fundamental lines of transit of the theodolite are

46. Plane table surveying is a graphical method of surveying in which:

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

48. Tacheometry is best suited

49. The chord of curve less than peg interval is known as

50. Short offsets are measured with