Surveying Online Test – Paper 3

1. The two-point problem is:

2. In the case of a telescopic alidade, the adjustment done is

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

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

5. A series of closely spaced contour lines represent a

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

7. The absence of chromatic aberration in a telescope is known as

8. Direction of the closing error is given by

9. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

10. If the formation level is less than the ground level, the difference between them at any point will give the

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

12. Level surface is parallel to

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

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

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

16. The method of offset laying involving minimum measurement on the ground is

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

18. 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?

19. 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

20. Tilting levels are used for

21. Staff intercept means

22. 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)

23. Parallax may be eliminated by

24. The tacheometric method is a more suitable method for preparing the contour map of

25. Personal error in leveling occurs due to

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

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

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

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

30. The types of survey used to fix property lines are

31. Short offsets are measured with

32. The image of the objectives formed should lie

33. With the help of leveling, we measure

34. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

35. The method most suitable for plotting in hilly areas is:

36. In the intersection method of plane tabling, the number of stations needed to be set up is:

37. The spacing of cross-sections in the indirect method of contouring depends upon

38. 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

39. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

40. The quadrantal system confines the user to measure the bearings from

41. In the scale of a map is 1:25000, what does it mean:

42. *Accuracy of 'fix' by two-point problem is

43. *The correction for refraction is given by

44. Isogonic lines are

45. A traverse survey can be plotted

46. Closed contours with higher value inside represent a

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

48. True meridians

49. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

50. Theodolite traverse is plotted more accurately by