Surveying Online Test – Paper 3

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

2. The sag correction is always

3. Right face and left face readings are taken to

4. In a closed traverse,

5. A relatively fixed point of known elevation above the datum is called

6. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

7. Chainage is the distance measured

8. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

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

10. When several contours coincide, it indicates

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

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

13. The stadia hairs are not used in

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

15. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

16. 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

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

18. Working edge of alidade is called

19. The closing error is given by

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

21. Open cross-staff is commonly used for setting out

22. Azimuth and altitude of a star

23. Staff intercept means

24. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

25. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

26. A level line is a

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

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

29. Which one of the following is not a personal error?

30. The maximum allowable limit up to which a measurement may vary from the true value is known as

31. 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

32. If the needle is truly magnetic and is not sluggish

33. Axis method of traverse correction is used when

34. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

35. Overturning of vehicles on a curve can be avoided by using

36. Pick up the odd statement

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

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

39. The magnetic north is indicated by

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

41. *The observed reading on a leveling staff was 3.545 m. If the staff was 0.150m off from the original ground level, what should be the correct reading?

42. *Total station measures

43. A discrepancy is the difference between

44. Chain surveying is used for a small area in

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

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

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

48. Distomats is a type of

49. Offset angle taken in chain survey may be

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