Surveying Online Test – Paper 3

1. A traverse deflection angle is

2. Pick up the odd statement

3. The types of errors that are of a cumulative nature and can be corrected are known as

4. A traverse consists of six sides; then the sum of external angles must be

5. Obstacle to ranging but not chaining is

6. The absence of spherical aberration in a telescope is known as

7. "Fiducial edge" is the working edge of

8. A diagonal eyepiece is provided with a

9. 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

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

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

12. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

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

14. Different grades are joined together by a

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

16. The image of the objectives formed should lie

17. Intersection is preferred to radiation when:

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

19. The dip of the needle

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

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

22. Crosshairs in a surveying telescope are fitted

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

24. A straight line tangential to the longitudinal curve of the level tube at its center is known as

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

26. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

27. Subtense bar is an instrument used for the measurement of horizontal distance in

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

29. The effect of local attraction is observed in

30. Secular variation is an important factor because

31. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

32. 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

33. 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

34. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

35. True meridians

36. 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:

37. A river is an obstacle to

38. A bearing noted N45° E represents

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

40. The height of instrument method is

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

42. Least count is given by

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

44. The curvature and refraction corrections applied to staff readings respectively are

45. The accuracy of measurement in chain surveying does not depend upon

46. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

47. Any arbitrarily assumed level line from which vertical distances are measured is known as

48. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

49. In a closed traverse,

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