Surveying Online Test – Paper 3

1. The Philadelphia rod is a type of

2. The two-point problem is:

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

4. An operation for determining the relative elevations of different points on the surface of the earth is known as

5. Which one of the following may not be classified as personal error

6. While measuring horizontal distance by stepping method we should follow

7. The device used in computing the horizontal and vertical distances rapidly and conveniently is

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

9. Crosshairs in a surveying telescope are fitted

10. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

11. The angular and linear measurement of the part of the traverse can be checked by

12. A traverse consists of six sides; then the sum of external angles must be

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

14. Least count is given by

15. The types of instrument generally used in the survey of gravity water supply system are:

16. Tilting levels are used for

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

18. The difference between the most probable value of a quantity and its observed value is

19. The main difference between an optical square and a prism square is

20. A chain is made up of mild steel or galvanized iron wire of diameter

21. Methods adopted for traversing are

22. When a chain line encounters a river:

23. Theodolite is an instrument used for measuring

24. The direction of the steepest slope on a contour is

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

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

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

28. An invert is taken when the point is

29. The image of the objectives formed should lie

30. The shape of the vertical curve generally used is

31. A discrepancy is the difference between

32. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

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

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

35. The chain length which is not the standard metric chain length is

36. Contours are used to determine

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

38. The magnetic north is indicated by

39. *The method of leveling used to carry out the reconnaissance of an area is

40. In leveling, the station where the back sight and foresight readings are taken is known as

41. Instrumental error in leveling is an error due to

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

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

44. Error in tacheometric surveying is due to

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

46. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

47. In the case of a telescopic alidade, the adjustment done is

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

49. The last reading of leveling is always at

50. Axis method of traverse correction is used when