Surveying Online Test – Paper 3

1. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

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

3. The limiting length of an offset does not depend upon

4. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

5. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for:

6. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

7. The correction for curvature as applied to staff reading is

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

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

10. The last reading of leveling is always at

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

12. 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

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

14. The direct method of contouring is

15. Chain surveying is used for a small area in

16. Leveling across a river is done by

17. When a chain line encounters a river:

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

19. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

20. 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

21. The instrument used to reproduce plans to a different scale is called

22. The W.C.B of a line is preferred to a quadrantal bearing merely because

23. A diagonal eyepiece is provided with a

24. Automatic level has advantages of

25. The fundamental lines of transit of the theodolite are

26. The process of turning the telescope about the horizontal axis in a vertical plane by a complete revolution is known as

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

28. The angle that can be set by a French cross-staff is

29. Diurnal variation depends upon

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

31. A chain is made up of mild steel or galvanized iron wire of diameter

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

33. When the following scale is the smallest one

34. The closing error is given by

35. Distomats is a type of

36. Ranging is the process of

37. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

38. In the scale of a map is 1:25000, what does it mean:

39. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

40. Setting up the plane table consists of operations:

41. Horizontal equivalent of a uniform slope must be

42. The sensitivity of the bubble tube can be increased by

43. In a double-line river, contours are

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

45. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

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

47. The resection by a two-point problem as compared to the three-point problem:

48. The instrument used for measuring area on a contour map is

49. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

50. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to