Surveying Online Test – Paper 3

1. Secular variation is an important factor because

2. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

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

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

5. Offsets are

6. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

7. Resection is the method employed for:

8. The main difference between theodolite and level is:

9. Butt rods are used for measuring

10. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

11. Which one is the simplest survey?

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

13. A series of straight, parallel, and widely spaced contours on a map represent a

14. The intercept of a staff is

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

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

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

18. The strength of the fix of a plane table is:

19. 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

20. A 30 m long chain when tested should not show errors exceeding

21. Permanent adjustment is carried out to

22. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

23. Tacheometry is adopted where

24. The two-point problem as compared to the three-point problem is:

25. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

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

27. The needle is adjusted for

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

29. Staff intercept means

30. Different grades are joined together by a

31. Obstacle to ranging but not chaining is

32. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

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

34. The rise and fall method

35. An invert is taken when the point is

36. The function of the leveling head is

37. If the needle of the compass is sluggish the type of error will be

38. In leveling across a hill, the level should be set up on

39. With the help of leveling, we measure

40. 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

41. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

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

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

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

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

46. Geodetic survey is different from plane surveying because of

47. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

48. Two contour lines, having the same elevation

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

50. A straight line tangential to the longitudinal curve of the level tube at its center is known as