Surveying Online Test – Paper 3

1. The horizontal distances obtained by tacheometry are corrected for

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

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

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

5. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

6. *Total station measures

7. Different grades are joined together by a

8. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

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

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

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

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

13. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

14. In a closed traverse, the algebraic sum of deflection angles is

15. A building is an obstacle to

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

17. Theodolite is an instrument used for measuring

18. Local attraction at a place may be due to

19. In a closed traverse,

20. Dumpy level is used when

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

22. The shape of the vertical curve generally used is

23. A diagonal eyepiece is provided with a

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

25. The dip of the needle

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

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

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

29. A traverse survey can be plotted

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

31. *The two-peg method is used to check the parallelism between the

32. In compass surveying

33. When several contours coincide, it indicates

34. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

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

36. A leveling station is a point where:

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

38. Right face and left face readings are taken to

39. Instrumental error in leveling is an error due to

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

41. Geodetic survey is different from plane surveying because of

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

43. Cubic parabola is a type of

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

45. In normal condition, the difference of fore and back bearing should be?

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

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

48. The spacing of cross-sections in the indirect method of contouring depends upon

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

50. A disadvantage of plane table survey is: