Surveying Online Test – Paper 3

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

2. If a chain is found too short on testing, it can be adjusted by

3. Height of the instrument is equal to:

4. In the scale of a map is 1:25000, what does it mean:

5. The contour lines merge or cross one another on the map in the case of

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

7. In plane table instrument for horizontal & vertical measurement without chaining

8. Offset angle taken in chain survey may be

9. The telescope is said to be normal when the

10. Invar tapes are made of an alloy of

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

12. The fundamental lines of transit of the theodolite are

13. Which one of the following is not a personal error?

14. If the needle is truly magnetic and is not sluggish

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

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

17. For a line AB

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

19. Size of a theodolite is specified by

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

21. Pick up the odd statement

22. Under Survey, "working from whole to part" is done

23. Chainage is the distance measured

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

25. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

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

27. *For the construction of highway/railway

28. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

29. For the route survey of a contour map, the method used is

30. With the help of leveling, we measure

31. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

32. A leveling station is a point where:

33. Crosshairs in a surveying telescope are fitted

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

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

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

37. The accuracy of measurement in chain surveying does not depend upon

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

39. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

40. Well-conditioned triangle having an angle between

41. *The observed reading on a leveling staff was 3.545 m. If the staff was 0.150m off from the original ground level, what should be the correct reading?

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

43. The tie line is run through the survey to

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

45. The contour lines are perpendicular to the

46. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

47. The method of offset laying involving minimum measurement on the ground is

48. *Error due to imperfect adjustment of plate level is termed as

49. The three-point problem is concerned with:

50. When several contours coincide, it indicates