Surveying Online Test – Paper 3

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

2. Ranging is the process of

3. 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

4. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

5. The difference between a level line and a horizontal line is that

6. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

7. The levelling head of a transit theodolite consists of

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

9. Choose the correct statement:

10. An offset scale always has the zero mark at

11. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

12. The effect of local attraction is observed in

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

14. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

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

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

17. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

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

19. The rise and fall method of leveling provides a complete check on

20. The upper plate

21. The fix of the table is good when:

22. The graduations in a prismatic compass are

23. A building is an obstacle to

24. 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

25. The device used in computing the horizontal and vertical distances rapidly and conveniently is

26. Actually, which is not the method of plane tabling?

27. The telescope is said to be normal when the

28. Tacheometry is adopted where

29. To orient a plane table without two inaccessible points, the method generally adopted is:

30. Tellurometer uses

31. Find the contour interval for the map, 1: 25000 in IS & FPS

32. The dip of the needle

33. The whole circle bearing 338°42" converted into quadrantal form is given as

34. *Total station is

35. The number of links in a 30 m metric chain is

36. Direct distance measurement method is more suitable to measure in

37. When several contours coincide, it indicates

38. Which one is wrong?

39. The angle of intersection of the horizon mirror and the index mirror of an optical square is

40. When the following scale is the smallest one

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

42. Parallax may be eliminated by

43. Instrumental error in leveling is an error due to

44. The three-point problem is concerned with:

45. Natural error in leveling is caused due to

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

47. The magnetic north is indicated by

48. Distomats is a type of

49. The inclination of the needle to the horizontal towards the pole is called

50. The optical square is based on the principle of