Surveying Online Test – Paper 3

1. A series of closely spaced contour lines represent a

2. Instrumental error in leveling is an error due to

3. 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

4. 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

5. The correction for curvature as applied to staff reading is

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

7. Contour lines look to cross each other in the case of

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

9. A benchmark (BM) is a

10. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

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

12. The intercept of a staff is

13. The process of bringing the vertical circle to the right of the observer is called

14. Revolving of the telescope of a theodolite in a horizontal plane is

15. The true bearing of a line can be calculated as (Where the declination is to the east.)

16. Azimuth and altitude of a star

17. 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

18. The strength of fix' is poor when:

19. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

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

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

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

23. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

24. Least count is given by

25. The Philadelphia rod is a type of

26. The needle is adjusted for

27. The fundamental lines of transit of the theodolite are

28. The tacheometric method is a more suitable method for preparing the contour map of

29. The permissible limits of error in chaining for measurement on rough or hilly ground are

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

31. The two-point problem and three-point problems are methods of:

32. A river is an obstacle to

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

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

35. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

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

37. In leveling, the station where the back sight and foresight readings are taken is known as

38. The main difference between theodolite and level is:

39. The effect of local attraction is observed in

40. Which one is wrong?

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

42. In the direct method of contouring, the process of locating points lying on a contour is known as

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

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

45. Tacheometry is best suited

46. Chain surveying is used for a small area in

47. Chain surveying is used for

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

49. Level surface is parallel to

50. The W.C.B of a line is preferred to a quadrantal bearing merely because