Surveying Online Test – Paper 3

1. A diagonal eyepiece is provided with a

2. The telescope is said to be normal when the

3. Area of triangle joining three corner points in comparison to the circle same three points:

4. An example of a level surface is

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

6. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

7. The sensitivity of the bubble tube can be increased by

8. Handles are connected to the link by

9. A negative declination shows the magnetic meridian to the

10. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

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

12. The absence of spherical aberration in a telescope is known as

13. The purpose of triangulation in a chain survey is

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

15. Chain surveying is used for a small area in

16. Choose the correct statement:

17. For the route survey of a contour map, the method used is

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

19. The central angle subtended by an arc of 30m of the curve

20. The graduations in a prismatic compass are

21. Level surface is parallel to

22. The rise and fall method

23. 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

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

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

26. Which one is the simplest survey?

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

28. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

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

30. Local attraction at a place may be due to

31. The tie line is run through the survey to

32. Find the length of curve if radius of curve

33. In the case of a telescopic alidade, the adjustment done is

34. *The line of collimation should be parallel to

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

36. A staff reading taken on a benchmark/ known elevation or change point is known as

37. The length of the perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

38. The line normal to the plumb line is known as

39. The dip of the needle

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

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

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

43. The strength of the fix of a plane table is:

44. Metallic tapes are made of

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

46. Azimuth and altitude of a star

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

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

49. Hydrographic survey deals with the mapping of

50. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is