Surveying Online Test – Paper 3

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

2. Hydrographic survey deals with the mapping of

3. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

4. In the case of leveling staff readings are taken by (In the case of target staff)

5. A traverse deflection angle is

6. The absence of chromatic aberration in a telescope is known as

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

8. 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

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

10. In an internal focusing type of telescope, the negative lens provided is

11. A contour map of the area is essential before proceeding with the construction of

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

13. Distomats is a type of

14. A series of closed contour lines on the map with higher to lower values inside them represent a

15. Intersection is preferred to radiation when:

16. If a chain is found too short on testing, it can be adjusted by

17. Chain surveying is used for a small area in

18. If the formation level is less than the ground level, the difference between them at any point will give the

19. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

20. A traverse survey can be plotted

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

22. The angular error of closure or summation error should not exceed (Where N is the number of stations or sides.)

23. Metallic tapes are made of

24. *The method of leveling used to carry out the reconnaissance of an area is

25. The distance between terminal points computed from a subsidiary traverse run between them is known as

26. The orientation of the table is done by

27. The magnification of a telescope lens depends upon

28. The minimum horizontal distance between any two consecutive contours is known as

29. Negative errors are caused in the chain when its length is

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

31. Obstacle to ranging but not chaining is

32. In leveling, the station where the back sight and foresight readings are taken is known as

33. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

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

35. Choose the correct statement:

36. The whole circle bearing 338°42" converted into quadrantal form is given as

37. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

38. The dip of the needle

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

40. Limiting the length of offset depends upon

41. The effect of local attraction is observed in

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

43. Cubic parabola is a type of

44. Contour interval, within the limits of a map

45. Azimuth and altitude of a star

46. 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

47. Contour lines look to cross each other in the case of

48. The fundamental lines of transit of the theodolite are

49. The longest chain line passing through the center of the area is known as

50. The projection of a line on a plane parallel to the meridian is known as