Surveying Online Test – Paper 3

1. If the magnetic bearing of the sun at noon at a place in the southern hemisphere is 150°, the magnetic declination at that place is

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

3. The Philadelphia rod is a type of

4. Theodolite traverse is plotted more accurately by

5. Compensating errors in chaining or other surveys are

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

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

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

9. The direct method of contouring is

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

11. For the construction of a highway railway

12. The effect of local attraction is observed in

13. The method of tacheometry in which the stadia hair intercept is fixed is known as

14. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

15. Local attraction in compass surveying may be due to

16. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

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

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

19. Plane table survey is considered good as compared to other surveys since:

20. The distance between terminal points computed from a subsidiary traverse run between them is known as

21. A poor fix of the table is:

22. In compass surveying

23. You are requested to carry out a survey for the construction of a small airport in a mountainous region of Nepal. Which of the following surveying method will you choose?

24. The vertical distance between any two consecutive contours is known as

25. The trunion axis or transverse axis is

26. Leveling across a river is done by

27. The order of accuracy of the elevation of points obtained from a contour map is equal to

28. The multiplying constant of a tacheometer is

29. The tie line is run through the survey to

30. The horizontal distances obtained by tacheometry are corrected for

31. Bench marks are fixed by

32. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

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

34. 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:

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

36. The included angles of the theodolite traverse are generally measured

37. Local attraction at a place may be due to

38. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

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

40. 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

41. Contour lines

42. Under Survey, "working from whole to part" is done

43. An example of a level surface is

44. A 20 cm theodolite means

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

46. The two-point problem and three-point problems are methods of:

47. The foremost work to be executed while traversing with a compass is

48. 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

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

50. Diurnal variation depends upon