Surveying Online Test – Paper 3

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

2. The levelling head of a transit theodolite consists of

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

4. The quadrantal system confines the user to measure the bearings from

5. The image of the objectives formed should lie

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

7. The effect of local attraction is observed in

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

9. The angular error of closure or summation error should not exceed (Where N is the number of stations or sides.)

10. Metallic tapes are made of

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

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

13. 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

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

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

16. The needle is adjusted for

17. The rise and fall method of leveling provides a complete check on

18. The minimum horizontal distance between any two consecutive contours is known as

19. Intersection is preferred to radiation when:

20. With the help of leveling, we measure

21. You are requested to carry out a survey for the construction of a small airport in a mountainous region of Nepal. Which of the following surveying method will you choose?

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

23. The survey stations set up during traversing with the compass should be such that

24. Direction of the closing error is given by

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

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

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

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

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

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

31. The boundary of water of a still lake is

32. Bench marks are fixed by

33. An imaginary line connecting the points of equal elevation on the ground surface is known as

34. An offset more than 15m in length is known as

35. The dip of the needle

36. When the following scale is the smallest one

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

38. The fundamental lines of transit of the theodolite are

39. The principle of surveying to prevent the accumulation of errors is

40. The shape of the vertical curve generally used is

41. The limiting length of an offset does not depend upon

42. The surface perpendicular to the direction of gravity is

43. The types of survey in which fieldwork and plotting proceed simultaneously are:

44. The number of horizontal cross wires in a stadia diaphragm is

45. The number of links in a 30 m metric chain is

46. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

47. "A curve of varying radius introduced between two branches of a compound curve is called

48. In the case of leveling staff readings are taken by (In the case of target staff)

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

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