Surveying Online Test – Paper 3

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

2. Butt rods are used for measuring

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

4. Azimuth and altitude of a star

5. *Total station is

6. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

7. *Error due to imperfect adjustment of plate level is termed as

8. Size of a theodolite is specified by

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

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

11. Diurnal variation depends upon

12. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

13. Right face and left face readings are taken to

14. The last reading of leveling is always at

15. The shape of the vertical curve generally used is

16. *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?

17. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is

18. Leveling across a river is done by

19. Local attraction at a place may be due to

20. Height of the instrument is equal to:

21. A curve consists of two areas of different radii bending in the same direction and lying on the same side of their common tangent and their centers being on the same side of the curve is known as a

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

23. 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

24. Dumpy level is used when

25. A Cadastral Map is a map having

26. *The instrument used to measure horizontal and vertical angle is

27. 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

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

29. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

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

31. Secular variation is an important factor because

32. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

33. A negative declination shows the magnetic meridian to the

34. Metallic tapes are made of

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

36. Obstacle to ranging but not chaining is

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

38. Working edge of alidade is called

39. In the whole circle system, the bearings are measured

40. The "point of the curve" of a simple circular curve is

41. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

42. A level line is a

43. The projection of a line on a plane parallel to the meridian is known as

44. The process of bringing the vertical circle to the right of the observer is called

45. Hydrographic survey deals with the mapping of

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

47. A 30 m long chain when tested should not show errors exceeding

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

49. Least count is given by

50. The three-point problem can be solved by: