Surveying Online Test – Paper 3

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

2. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

3. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

4. Which of the following terms is not associated with leveling:

5. In tacheometric survey, the method which provides easy reading of the staff is

6. The vertical distance between any two consecutive contours is known as

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

8. The instrument used for centering the plane table accurately is:

9. Prolongation of a chain line across an obstruction in chain surveying is done by

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

11. The three-point problem is concerned with:

12. Axis method of traverse correction is used when

13. Handles of chains are made of

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

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

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

17. A curve consists of two areas of different radii bending in the same direction and lying on the same side of their common tangent and their centers being on the same side of the curve is known as a

18. The needle is adjusted for

19. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

20. An instrumental error in compass survey is because

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

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

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

24. The place where the reading is taken is known as

25. The quadrantal system confines the user to measure the bearings from

26. Closed contours with higher value inside represent a

27. If the formation level is less than the ground level, the difference between them at any point will give the

28. 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

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

30. Find the R.F. of 1cm = 5m

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

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

33. In an internal focusing type of telescope, the negative lens provided is

34. When a chain line encounters a river:

35. *The leveling of the instrument is done such that

36. The contour line can cross one another on a map only in the case of

37. 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

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

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

40. Magnetic declination

41. *The correction for refraction is given by

42. The chord of curve less than peg interval is known as

43. The Normal chord of a curve should be

44. The line normal to the plumb line is known as

45. The strength of fix' is poor when:

46. The number of horizontal cross wires in a stadia diaphragm is

47. Chain surveying is used for

48. Revolving of the telescope of a theodolite in a horizontal plane is

49. Right face and left face readings are taken to

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