Surveying Online Test – Paper 3

1. 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

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

3. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

4. With the help of leveling, we measure

5. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

6. The needle is adjusted for

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

8. A contour map of the area is essential before proceeding with the construction of

9. In a closed traverse by included angles, the sum of measured interior angles should be equal to

10. 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

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

12. Different grades are joined together by a

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

14. The quadrantal bearing of a line is determined by:

15. Butt rods are used for measuring

16. A disadvantage of plane table survey is:

17. A leveling station is a point where:

18. Right face and left face readings are taken to

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

20. The process of turning the telescope about the vertical axis in a horizontal plane is known as

21. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

22. The rise and fall method

23. If the sights are vertical

24. 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

25. Personal error in leveling occurs due to

26. A level line is a

27. A traverse survey can be plotted

28. Contour interval is proportional

29. *The correction for refraction is given by

30. The outer spindle attached to the lower plate in a transit theodolite is known as

31. Which one of the following may not be classified as a natural error?

32. Indirect ranging method is adopted when two points of the chain line are:

33. Positive error is caused if

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

35. The effect of local attraction is observed in

36. 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

37. Setting up the plane table consists of operations:

38. The minimum horizontal distance between any two consecutive contours is known as

39. A bearing noted N45° E represents

40. Two contour lines, having the same elevation

41. The fundamental lines of transit of the theodolite are

42. Tilting levels are used for

43. The perpendicular distance of the midpoint of the line from the reference meridian is known as

44. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

45. "Cross-sectioning" and "Longitudinal sectioning" is

46. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

47. In the whole circle system, the bearings are measured

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

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

50. Any arbitrarily assumed level line from which vertical distances are measured is known as