Surveying Online Test – Paper 3

1. Ranging is the process of

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

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

4. A building is an obstacle to

5. In the case of a telescopic alidade, the adjustment done is

6. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

7. If the needle of the compass is sluggish the type of error will be

8. Handles of chains are made of

9. The last reading of leveling is always at

10. Horizontal equivalent of a uniform slope must be

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

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

13. Personal error in leveling occurs due to

14. An invert is taken when the point is

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

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

17. Secular variation is an important factor because

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

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

20. The closing error is given by

21. The shape of the vertical curve generally used is

22. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

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

24. Find the length of curve if R=500 m, Intersection angle= 120°

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

26. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

27. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

28. The levelling head of a transit theodolite consists of

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

30. 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

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

32. The fix of the table is good when:

33. The height of instrument method is

34. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

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

36. Two contour lines, having the same elevation

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

38. *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?

39. The maximum allowable limit up to which a measurement may vary from the true value is known as

40. A series of closely spaced contour lines represent a

41. In a prismatic compass,

42. Tacheometry is best suited

43. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

44. Well-conditioned triangle having an angle between

45. *Which instrument is not used in plane table

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

47. When a chain line encounters a river:

48. The main difference between an optical square and a prism square is

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

50. The sag correction is always