Surveying Online Test – Paper 3

1. The representation of general topography of a very flat terrain is possible only

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

3. The scale used to measure and to set out the angles is

4. The method of leveling in which the plane table is set at only one station to take detail is known as:

5. The fix of the table is good when:

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

7. Compensating errors in chaining or other surveys are

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

9. "Cross-sectioning" and "Longitudinal sectioning" is

10. If the temperature increases, the sensitivity of a bubble tube

11. 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

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

13. If the sights are vertical

14. The length of an Engineer's chain is

15. The Normal chord of a curve should be

16. Local attraction at a place may be due to

17. The image of the objectives formed should lie

18. The magnetic north is indicated by

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

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

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

22. The accuracy of measurement in chain surveying does not depend upon

23. *Total station measures

24. Boning rod is used

25. Handles are connected to the link by

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

27. The reciprocal leveling eliminates

28. The theory of probability is applied to

29. The surface perpendicular to the direction of gravity is

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

31. If the included angle is less than 180°, the deflection angle is

32. The orientation of the table is done by

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

34. 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

35. The height of instrument method is

36. Secular variation is an important factor because

37. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

38. Prolongation of a chain line across an obstruction in chain surveying is done by

39. Axis method of traverse correction is used when

40. A straight line tangential to the longitudinal curve of the level tube at its center is known as

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

42. Limiting the length of offset depends upon

43. When several contours coincide, it indicates

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

45. Isogonic lines are

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

47. Instrumental error in leveling is an error due to

48. Permanent adjustment is carried out to

49. Different grades are joined together by a

50. Hydrographic survey deals with the mapping of