Surveying Online Test – Paper 3

1. *The observed reading on a leveling staff was 3.545 m. If the staff was 0.150m off from the original ground level, what should be the correct reading?

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

3. The "point of tangency" of a simple circular curve is

4. *Error due to imperfect adjustment of plate level is termed as

5. The resection by a two-point problem as compared to the three-point problem:

6. In a prismatic compass,

7. Personal error in leveling occurs due to

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

9. Boning rod is used

10. 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

11. Handles of chains are made of

12. A poor fix of the table is:

13. Contours are used to determine

14. The needle is adjusted for

15. When several contours coincide, it indicates

16. The contour line can cross one another on a map only in the case of

17. Chain surveying is used for

18. Methods adopted for traversing are

19. An invert is taken when the point is

20. The projection of a line on a plane perpendicular to the meridian is known as

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

22. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

23. The magnification of a telescope lens depends upon

24. The quadrantal bearing of a line is determined by:

25. In chain survey execution, this first step taken is

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

27. Which one is wrong?

28. Size of a theodolite is specified by

29. For a tacheometer, the additive and multiplying constants are respectively

30. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

31. The angle subtended by the long chord of a simple curve at its center is equal to

32. The two-point problem as compared to the three-point problem is:

33. Contour interval is proportional

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

35. Orientation is the operation of keeping the table at successive stations such that:

36. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

37. Azimuth and altitude of a star

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

39. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

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

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

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

43. Resection is the method employed for:

44. The fix of the table is good when:

45. Limiting the length of offset depends upon

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

47. "A curve of varying radius introduced between two branches of a compound curve is called

48. 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

49. The length of an Engineer's chain is

50. Choose the correct statement: