Surveying Online Test – Paper 3

1. Natural error in leveling is caused due to

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

3. Isogonic lines are

4. The W.C.B of a line is preferred to a quadrantal bearing merely because

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

6. The contour interval depends upon

7. The difference between a level line and a horizontal line is that

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

9. For a line AB

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

11. Cubic parabola is a type of

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

13. A building is an obstacle to

14. Find the length of curve if radius of curve

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

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

17. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

18. An invert is taken when the point is

19. Tellurometer uses

20. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

21. Compensating errors in chaining or other surveys are

22. The true bearing of a line can be calculated as (Where the declination is to the east.)

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

24. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

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

26. The process of turning the telescope about the vertical axis in a horizontal plane is known as

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

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

29. The graduations in a prismatic compass are

30. Axis method of traverse correction is used when

31. Geodetic survey is different from plane surveying because of

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

33. The main difference between theodolite and level is:

34. In plane table instrument for horizontal & vertical measurement without chaining

35. A negative declination shows the magnetic meridian to the

36. Negative errors are caused in the chain when its length is

37. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

38. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

39. True meridians

40. The method of leveling in which the plane table is set at only one station to take detail is known as:

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

42. Two contour lines, having the same elevation

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

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

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

46. The device used in computing the horizontal and vertical distances rapidly and conveniently is

47. A diagonal eyepiece is provided with a

48. The inclination of the needle to the horizontal towards the pole is called

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

50. Butt rods are used for measuring