Surveying Online Test – Paper 3

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

2. The amount of correction due to local attraction at a place

3. The angular and linear measurement of the part of the traverse can be checked by

4. The upper plate

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

6. When a chain line encounters a river:

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

8. The area of the earth's surface is taken into account only if the extent of the survey is more than

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

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

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

12. 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

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

14. The reciprocal leveling eliminates

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

16. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

17. An instrumental error in compass survey is because

18. A traverse consists of six sides; then the sum of external angles must be

19. Find the length of curve if radius of curve

20. The length of an Engineer's chain is

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

22. Personal error in leveling occurs due to

23. The maximum allowable limit up to which a measurement may vary from the true value is known as

24. A level tube is used to make the line of sight horizontal. It is filled with

25. If the included angle is greater than 180°, the deflection angle is

26. If a chain is found too short on testing, it can be adjusted by

27. 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

28. A level line is a

29. *The line of collimation should be parallel to

30. The main difference between theodolite and level is:

31. Tacheometry is adopted where

32. Limiting the length of offset depends upon

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

34. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

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

36. 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

37. Local attraction at a place may be due to

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

39. *Total station measures

40. *The correction for refraction is given by

41. An offset more than 15m in length is known as

42. In a closed traverse, the algebraic sum of deflection angles is

43. 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

44. Secular variation is an important factor because

45. With the help of leveling, we measure

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

47. 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

48. Overturning of vehicles on a curve can be avoided by using

49. In the case of leveling staff readings are taken by (In the case of target staff)

50. The types of instrument generally used in the survey of gravity water supply system are: