Surveying Online Test – Paper 3

1. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

2. Ranging is the process of

3. With the help of leveling, we measure

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

5. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

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

7. 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

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

9. A diagonal eyepiece is provided with a

10. *The line of collimation should be parallel to

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

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

13. An internal focusing type of telescope is focused by the movement of

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

15. Bench marks are fixed by

16. The Normal chord of a curve should be

17. The true bearing of a line can be calculated as (Where the declination is to the east.)

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

19. The principle of surveying to prevent the accumulation of errors is

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

21. The strength of fix' is poor when:

22. The location of the contour gradient for a highway is best set out from

23. The limiting length of an offset does not depend upon

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

25. The levels to which the earthwork will have to be carried out is known as

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

27. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

28. The two-point problem and three-point problems are methods of:

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

30. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

31. A poor fix of the table is:

32. Geodetic survey is different from plane surveying because of

33. A series of closed contour lines on the map with higher to lower values inside them represent a

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

35. Handles are connected to the link by

36. Bowditch's rule is applied to

37. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

38. *Total station measures

39. Butt rods are used for measuring

40. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

41. An example of a level surface is

42. For a line AB

43. A leveling station is a point where:

44. The three-point problem can be solved by:

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

46. Natural error in leveling is caused due to

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

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

49. When a chain line encounters a river:

50. In survey works, declination varies from time to time and place to place. The main important variation is