Surveying Online Test – Paper 3

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

2. Distomats is a type of

3. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

4. Theodolite is an instrument used for measuring

5. Leveling across a river is done by

6. Cubic parabola is a type of

7. Contour interval is proportional

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

9. Secular variation is an important factor because

10. The contour interval depends upon

11. The purpose of triangulation in a chain survey is

12. The height of instrument method is

13. The process of turning the telescope about the vertical axis in a horizontal plane is known as

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

15. Natural error in leveling is caused due to

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

17. The method most suitable for plotting in hilly areas is:

18. The angle subtended by the long chord of a simple curve at its center is equal to

19. The projection of a line on a plane perpendicular to the meridian is known as

20. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

21. The shape of the vertical curve generally used is

22. Chain surveying is used for a small area in

23. Instrumental error in leveling is an error due to

24. The image of the objectives formed should lie

25. *Total station is

26. Choose the correct statement:

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

28. A series of closely spaced contour lines represent a

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

30. Obstacle to ranging but not chaining is

31. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

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

33. *The line of collimation should be parallel to

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

35. Angle of 45° with the chain line may be set out with

36. The difference between the most probable value of a quantity and its observed value is

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

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

39. Theodolite traverse is plotted more accurately by

40. The orientation of the table is done by

41. 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:

42. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

43. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

44. For a station to be free from local attraction

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

46. The theory of probability is applied to

47. The stadia hairs are not used in

48. For the construction of a highway railway

49. 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

50. The place where the reading is taken is known as