Surveying Online Test – Paper 3

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

2. The difference between the most probable value of a quantity and its observed value is

3. Which one of the following is not a personal error?

4. In tacheometric survey, the method which provides easy reading of the staff is

5. In leveling across a hill, the level should be set up on

6. If the included angle is greater than 180°, the deflection angle is

7. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

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

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

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

11. Offsets are

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

13. Azimuth and altitude of a star

14. Distomats is a type of

15. Positive error is caused if

16. The reciprocal leveling eliminates

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

18. Contour lines of different elevations can unite to form one line only in the case of

19. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

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

21. In an internal focusing type of telescope, the negative lens provided is

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

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

24. The size of the plane table is:

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

26. Tacheometry is best suited

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

28. For any point on the surface with a given inclination, the contour gradient possible is

29. The angle of intersection of a curve is the angle between

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

31. Compensating errors in chaining or other surveys are

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

33. *Which instrument is not used in plane table

34. The intercept of a staff is

35. Actually, which is not the method of plane tabling?

36. An instrumental error in compass survey is because

37. With the help of leveling, we measure

38. Plane table surveying is a graphical method of surveying in which:

39. The contour interval depends upon

40. The contour lines merge or cross one another on the map in the case of

41. An offset scale always has the zero mark at

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

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

44. Bowditch's rule is applied to

45. A level tube is used to make the line of sight horizontal. It is filled with

46. A diagonal eyepiece is provided with a

47. Geodetic survey is different from plane surveying because of

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

49. In a survey, it was recorded that Σrise = 0, then

50. Bench marks are fixed by