Surveying Online Test – Paper 3

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

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

3. The stadia hairs are not used in

4. The bearing of the traverse line is calculated by

5. The prismatic compass and the surveyor's compass respectively give

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

7. A 30 m long chain when tested should not show errors exceeding

8. "Fiducial edge" is the working edge of

9. A contour map of the area is essential before proceeding with the construction of

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. The quadrantal bearing of a line is determined by:

12. The surface perpendicular to the direction of gravity is

13. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

14. A curve consists of two areas of different radii bending in the same direction and lying on the same side of their common tangent and their centers being on the same side of the curve is known as a

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

16. A level line is a

17. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

18. The longitudinal section of the surface of the bubble tube is

19. The needle is adjusted for

20. The fundamental lines of transit of the theodolite are

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

22. To orient a plane table without two inaccessible points, the method generally adopted is:

23. Local attraction in compass surveying may be due to

24. The direct method of contouring is

25. Overturning of vehicles on a curve can be avoided by using

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

27. Intersection is preferred to radiation when:

28. The intercept of a staff is

29. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

30. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

31. 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

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

33. Find the length of curve if radius of curve

34. Tilting levels are used for

35. Right face and left face readings are taken to

36. The orientation of the table is done by

37. The method of tacheometry in which the stadia hair intercept is fixed is known as

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

39. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be

40. A bearing noted N45° E represents

41. A series of straight, parallel, and widely spaced contours on a map represent a

42. A river is an obstacle to

43. Personal error in leveling occurs due to

44. The types of leveling used for Geodetic survey is

45. The triangle formed by joining the position of the known points on plane table survey is known as:

46. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

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

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

49. Which one of the following may not be classified as a natural error?

50. Invar tapes are made of an alloy of