Surveying Online Test – Paper 3

1. *The radius of curvature of the arc of the bubble tube is generally kept

2. The tacheometric method is a more suitable method for preparing the contour map of

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

4. A Cadastral Map is a map having

5. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

6. A building is an obstacle to

7. Local attraction at a place may be due to

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

9. In a prismatic compass,

10. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

11. Theodolite traverse is plotted more accurately by

12. The Philadelphia rod is a type of

13. Permanent adjustment is carried out to

14. The telescope is said to be normal when the

15. *Total station is

16. Secular variation is an important factor because

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

18. The types of survey used to fix property lines are

19. Cubic parabola is a type of

20. The contour interval depends upon

21. Level surface is parallel to

22. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

23. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

24. A staff reading taken on a benchmark/ known elevation or change point is known as

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

26. The two-point problem and three-point problems are methods of:

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

28. In the direct method of contouring, the process of locating points lying on a contour is known as

29. The location of the contour gradient for a highway is best set out from

30. Short offsets are measured with

31. *Total station measures

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

33. A discrepancy is the difference between

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

35. In a double-line river, contours are

36. 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

37. "A curve of varying radius introduced between two branches of a compound curve is called

38. Azimuth (direct angles) is an angle measured in

39. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

40. "Fiducial edge" is the working edge of

41. The trunion axis or transverse axis is

42. Plane table survey is considered good as compared to other surveys since:

43. The angle of intersection of a curve is the angle between

44. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

45. Geodetic survey is different from plane surveying because of

46. For a tacheometer, the additive and multiplying constants are respectively

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

48. The designation of scale recommended by IS: 1491-1959 is

49. Personal error in leveling occurs due to

50. While measuring horizontal distance by stepping method we should follow