Surveying Online Test – Paper 3

1. 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:

2. While measuring horizontal distance by stepping method we should follow

3. Offsets are

4. A traverse survey can be plotted

5. Hydrographic survey deals with the mapping of

6. 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

7. Bowditch's rule is applied to

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

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

10. The correction for curvature as applied to staff reading is

11. *Which instrument is not used in plane table

12. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

13. Tacheometry is best suited

14. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

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

16. Find the length of curve if R=500 m, Intersection angle= 120°

17. Which of the following instruments is generally used for baseline measurements?

18. Angle of 45° with the chain line may be set out with

19. 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?

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

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

22. Find the contour interval for the map, 1: 25000 in IS & FPS

23. If the sights are vertical

24. Instrumental error in leveling is an error due to

25. Revolving of the telescope of a theodolite in a horizontal plane is

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

27. 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

28. The scale used to measure and to set out the angles is

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

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

31. Area of triangle joining three corner points in comparison to the circle same three points:

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

33. The representation of general topography of a very flat terrain is possible only

34. Tacheometry is adopted where

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

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

37. The survey stations set up during traversing with the compass should be such that

38. Tellurometer uses

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

40. The bearing of the traverse line is calculated by

41. Chain surveying is used for

42. Which one is wrong?

43. When the following scale is the smallest one

44. Isogonic lines are

45. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

46. For Y level, Cooke's, and Cushing levels, the line of collimation should coincide with

47. The height of instrument method is

48. The error eliminated by taking the mean of both face observations is

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

50. In a double-line river, contours are