Surveying Online Test – Paper 3

1. In a closed traverse,

2. Sensitivity of a level tube is expressed by

3. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

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

5. A benchmark (BM) is a

6. The magnification of a telescope lens depends upon

7. The levelling head of a transit theodolite consists of

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

9. With the help of leveling, we measure

10. Distomats is a type of

11. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

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

13. A relatively fixed point of known elevation above the datum is called

14. Pick up the odd statement

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

16. An invert is taken when the point is

17. *The leveling of the instrument is done such that

18. The angle which the true meridian makes with the magnetic meridian is called

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

20. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

21. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

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

23. If the needle is truly magnetic and is not sluggish

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

25. Local attraction at a place may be due to

26. The Normal chord of a curve should be

27. Obstacle to ranging but not chaining is

28. Normal tension is that pull which

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

30. Diurnal variation depends upon

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

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

33. 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

34. Closed contours with higher value inside represent a

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

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

37. In survey, it was recorded that Σfall = 0 then

38. Different grades are joined together by a

39. If the length of a transition curve is such that the full super elevation is attained at the junction with the circular curve, the resultant curve is known as

40. The length of an Engineer's chain is

41. Theodolite traverse is plotted more accurately by

42. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

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

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

45. Butt rods are used for measuring

46. *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?

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

48. The purpose of triangulation in a chain survey is

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

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