Surveying Online Test – Paper 3

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

2. Actually, which is not the method of plane tabling?

3. The angle that can be set by a French cross-staff is

4. 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

5. The strength of the fix of a plane table is:

6. The function of the leveling head is

7. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

8. A negative declination shows the magnetic meridian to the

9. Resection is the method employed for:

10. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

11. Pick up the odd statement

12. Axis method of traverse correction is used when

13. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

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

15. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

16. A level line is a

17. In a survey, it was recorded that Σrise = 0, then

18. Height of instrument method of leveling, as compared to the rise and fall method, is

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

20. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

21. *The correction for refraction is given by

22. A transition curve introduced between the tangent and the circular curve should

23. The angle subtended by the long chord of a simple curve at its center is equal to

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

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

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

27. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

28. Theodolite traverse is plotted more accurately by

29. Right face and left face readings are taken to

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

31. Height of the instrument is equal to:

32. An instrumental error in compass survey is because

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

34. The last reading of leveling is always at

35. The strength of fix' is poor when:

36. A disadvantage of plane table survey is:

37. Contours are used to determine

38. Handles are connected to the link by

39. Tacheometry is best suited

40. The telescope is said to be normal when the

41. A traverse deflection angle is

42. The types of leveling used for Geodetic survey is

43. Sensitivity of a level tube is expressed by

44. The purpose of triangulation in a chain survey is

45. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

46. 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

47. The effect of local attraction is observed in

48. For accurate work, in comparison to the chain, the steel band is used because it

49. Automatic level has advantages of

50. The best method of interpolation of contours in the direct method of contouring is by