Surveying Online Test – Paper 3

1. The projection of a line on a plane perpendicular to the meridian is known as

2. An offset scale always has the zero mark at

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

4. Well-conditioned triangle having an angle between

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

6. Chain surveying is used for a small area in

7. 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

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

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

10. A benchmark (BM) is a

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

12. The smaller angle which a survey line makes with the true meridian is known as

13. The curvature and refraction corrections applied to staff readings respectively are

14. Limiting the length of offset depends upon

15. In a survey, it was recorded that Σrise = 0, then

16. 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

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

18. *Total station measures

19. A leveling station is a point where:

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

21. The best method of interpolation of contours in the direct method of contouring is by

22. For the construction of a highway railway

23. The fix of the table is good when:

24. Personal error in leveling occurs due to

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

26. Permanent adjustment is carried out to

27. In a prismatic compass,

28. The image of the objectives formed should lie

29. The main difference between an optical square and a prism square is

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

31. The difference between the most probable value of a quantity and its observed value is

32. In plane table instrument for horizontal & vertical measurement without chaining

33. 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

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

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

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

37. Chainage is the distance measured

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

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

40. "Fiducial edge" is the working edge of

41. For accurate work, in comparison to the chain, the steel band is used because it

42. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

43. The telescope is said to be normal when the

44. The optical square is based on the principle of

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

46. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

47. In a closed traverse,

48. *Which instrument is not used in plane table

49. Resection is the method employed for:

50. The main difference between theodolite and level is: