Surveying Online Test – Paper 3

1. The horizontal distances obtained by tacheometry are corrected for

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

3. Height of the instrument is equal to:

4. Boning rod is used

5. When several contours coincide, it indicates

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

7. Chainage is the distance measured

8. 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

9. The closing error is given by

10. The magnetic north is indicated by

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

12. When a chain line encounters a river:

13. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

14. Pick up the odd statement

15. "Cross-sectioning" and "Longitudinal sectioning" is

16. In compass surveying

17. The two-point problem is:

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

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

20. The angular and linear measurement of the part of the traverse can be checked by

21. A transition curve introduced between the tangent and the circular curve should

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

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

24. The area of the earth's surface is taken into account only if the extent of the survey is more than

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

26. The longest chain line passing through the center of the area is known as

27. For a line AB

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

29. The place where the reading is taken is known as

30. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

31. The levels to which the earthwork will have to be carried out is known as

32. The process of bringing the vertical circle to the right of the observer is called

33. 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

34. If the temperature increases, the sensitivity of a bubble tube

35. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

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

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

38. The tie line is run through the survey to

39. An instrumental error in compass survey is because

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

41. A building is an obstacle to

42. Direct distance measurement method is more suitable to measure in

43. Dumpy level is used when

44. For accurate work, in comparison to the chain, the steel band is used because it

45. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

46. Theodolite is an instrument used for measuring

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

48. Local attraction in compass surveying may be due to

49. Tellurometer uses

50. The effect of local attraction is observed in