Surveying Online Test – Paper 3

1. For a line AB

2. If the needle is truly magnetic and is not sluggish

3. A diagonal eyepiece is provided with a

4. Which one of the following is not a personal error?

5. For Y level, Cooke's, and Cushing levels, the line of collimation should coincide with

6. Obstacle to ranging but not chaining is

7. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is

8. Which one is wrong?

9. The types of survey in which fieldwork and plotting proceed simultaneously are:

10. The method of offset laying involving minimum measurement on the ground is

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

12. The last reading of leveling is always at

13. Ranging is the process of

14. The levels to which the earthwork will have to be carried out is known as

15. The curvature and refraction corrections applied to staff readings respectively are

16. The contour lines merge or cross one another on the map in the case of

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

18. If the included angle is greater than 180°, the deflection angle is

19. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

20. Diurnal variation depends upon

21. For any point on the surface with a given inclination, the contour gradient possible is

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

23. If the length of a transition curve is such that the full super elevation is attained at the junction with the circular curve, the resultant curve is known as

24. The errors due to bad ranging are

25. Theodolite is an instrument used for measuring

26. Setting up the plane table consists of operations:

27. A traverse survey can be plotted

28. 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:

29. The magnetic north is indicated by

30. Cubic parabola is a type of

31. 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

32. Dumpy level is used when

33. Secular variation is an important factor because

34. Offsets are

35. The reciprocal leveling eliminates

36. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

37. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

38. Handles are connected to the link by

39. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

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

41. The fix of the table is good when:

42. The sag correction is always

43. The bearing of the traverse line is calculated by

44. The survey stations set up during traversing with the compass should be such that

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

46. 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

47. The area of the earth's surface is taken into account only if the extent of the survey is more than

48. Hydrographic survey deals with the mapping of

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

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