Surveying Online Test – Paper 3

1. In compass surveying

2. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

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

4. Permanent adjustment is carried out to

5. The trunion axis or transverse axis is

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

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

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

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

10. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

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

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

13. The prismatic compass and the surveyor's compass respectively give

14. Which of the following instruments is generally used for baseline measurements?

15. 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

16. Distomats is a type of

17. A benchmark (BM) is a

18. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be

19. Invar tapes are made of an alloy of

20. A Cadastral Map is a map having

21. A traverse survey can be plotted

22. Tacheometry is best suited

23. The "point of tangency" of a simple circular curve is

24. The errors due to bad ranging are

25. In the whole circle system, the bearings are measured

26. Working edge of alidade is called

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

28. Magnetic declination

29. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

30. Boning rod is used

31. The types of errors that are of a cumulative nature and can be corrected are known as

32. Leveling across a river is done by

33. The permissible limits of error in chaining for measurement on rough or hilly ground are

34. In leveling across a hill, the level should be set up on

35. In normal condition, the difference of fore and back bearing should be?

36. The telescope is said to be normal when the

37. The reciprocal leveling eliminates

38. Height of the instrument is equal to:

39. Contour lines of different elevations can unite to form one line only in the case of

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

41. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

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

43. *For the construction of highway/railway

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

45. The closing error is given by

46. Find the length of curve if R=500 m, Intersection angle= 120°

47. Metallic tapes are made of

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

49. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

50. Level surface is parallel to