Surveying Online Test – Paper 3

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

2. In leveling, the station where the back sight and foresight readings are taken is known as

3. Sensitivity of a level tube is expressed by

4. If the included angle is greater than 180°, the deflection angle is

5. The resection by a two-point problem as compared to the three-point problem:

6. An internal focusing type of telescope is focused by the movement of

7. The central angle subtended by an arc of 30m of the curve

8. The types of instrument generally used in the survey of gravity water supply system are:

9. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

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

11. If the sights are vertical

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

13. The magnetic north is indicated by

14. In compass surveying

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

16. A bearing noted N45° E represents

17. "Fiducial edge" is the working edge of

18. *Which instrument is not used in plane table

19. The W.C.B of a line is preferred to a quadrantal bearing merely because

20. The difference between the most probable value of a quantity and its observed value is

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

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

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

24. Bowditch's rule is applied to

25. A level line is a

26. An offset scale always has the zero mark at

27. A river is an obstacle to

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

29. In survey works, declination varies from time to time and place to place. The main important variation is

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

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

32. 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

33. Butt rods are used for measuring

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

35. Right face and left face readings are taken to

36. The types of survey in which fieldwork and plotting proceed simultaneously are:

37. The minimum horizontal distance between any two consecutive contours is known as

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

39. The sensitivity of the bubble tube can be increased by

40. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

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

42. When a chain line encounters a river:

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

44. If the needle of the compass is sluggish the type of error will be

45. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

46. Orientation is the operation of keeping the table at successive stations such that:

47. For the construction of a highway railway

48. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

49. *The two-peg method is used to check the parallelism between the

50. Axis method of traverse correction is used when