Surveying Online Test – Paper 3

1. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

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

3. The foremost work to be executed while traversing with a compass is

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

5. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

6. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

7. The boundary of water of a still lake is

8. The outer spindle attached to the lower plate in a transit theodolite is known as

9. Plane table surveying is a graphical method of surveying in which:

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

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

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

13. The needle is adjusted for

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

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

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

17. Horizontal equivalent of a uniform slope must be

18. The "point of the curve" of a simple circular curve is

19. Automatic level has advantages of

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

21. Dumpy level is used when

22. A building is an obstacle to

23. The levelling head of a transit theodolite consists of

24. Resection is the method employed for:

25. The whole circle bearing 338°42" converted into quadrantal form is given as

26. *Which instrument is not used in plane table

27. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

28. Size of a theodolite is specified by

29. When a chain line encounters a river:

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

31. The purpose of triangulation in a chain survey is

32. In the intersection method of plane tabling, the number of stations needed to be set up is:

33. The magnetic north is indicated by

34. Geodetic survey is different from plane surveying because of

35. Handles of chains are made of

36. The type of survey in which horizontal and vertical distance is measured

37. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

38. 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

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

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

41. The position of a point can be fixed more accurately by

42. The representation of general topography of a very flat terrain is possible only

43. Direct distance measurement method is more suitable to measure in

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

45. The designation of scale recommended by IS: 1491-1959 is

46. Theodolite traverse is plotted more accurately by

47. *Due to the curvature of the earth, objects look

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

49. The curvature and refraction corrections applied to staff readings respectively are

50. The intercept of a staff is