Surveying Online Test – Paper 3

1. Prolongation of a chain line across an obstruction in chain surveying is done by

2. The direct method of contouring is

3. In a closed traverse, the algebraic sum of deflection angles is

4. Pick up the odd statement

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

6. Chainage is the distance measured

7. The multiplying constant of a tacheometer is

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

9. Crosshairs in a surveying telescope are fitted

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

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

12. The line normal to the plumb line is known as

13. Find the R.F. of 1cm = 5m

14. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

15. Choose the correct statement:

16. Natural error in leveling is caused due to

17. If the included angle is less than 180°, the deflection angle is

18. Personal error in leveling occurs due to

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

20. Contour lines

21. In a prismatic compass,

22. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

23. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

24. If n observations are taken, the accidental errors are proportional to

25. The horizontal distances obtained by tacheometry are corrected for

26. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

27. 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

28. 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

29. Size of a theodolite is specified by

30. Secular variation is an important factor because

31. The curvature and refraction corrections applied to staff readings respectively are

32. The magnetic north is indicated by

33. The instrument used to reproduce plans to a different scale is called

34. For the route survey of a contour map, the method used is

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

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

37. Working edge of alidade is called

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

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

40. The contour lines are perpendicular to the

41. An anallatic lens is provided in a tacheometer to measure the horizontal distance.

42. In a double-line river, contours are

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

44. Which one is the simplest survey?

45. Cubic parabola is a type of

46. Error in tacheometric surveying is due to

47. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

48. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

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

50. The chain length which is not the standard metric chain length is