Surveying Online Test – Paper 3

1. The angle of intersection of the horizon mirror and the index mirror of an optical square is

2. The reciprocal leveling eliminates

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

4. Contour lines of different elevations can unite to form one line only in the case of

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

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. Azimuth and altitude of a star

8. An internal focusing type of telescope is focused by the movement of

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

10. Intersection is preferred to radiation when:

11. In plane table instrument for horizontal & vertical measurement without chaining

12. *The instrument used to measure horizontal and vertical angle is

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

14. Resection is the method employed for:

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

16. The closing error is given by

17. Contour interval is proportional

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

19. Under Survey, "working from whole to part" is done

20. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

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

22. The orientation of the table is done by

23. The difference between a level line and a horizontal line is that

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

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

26. For a dumpy level in perfect adjustment, the horizontal cross hair should be in a plane

27. The length of an Engineer's chain is

28. Size of a theodolite is specified by

29. The true bearing of a line can be calculated as (Where the declination is to the east.)

30. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

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

32. The "point of tangency" of a simple circular curve is

33. In compass surveying

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

35. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

36. A discrepancy is the difference between

37. Open cross-staff is commonly used for setting out

38. In tacheometric survey, the method which provides easy reading of the staff is

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

40. The magnetic north is indicated by

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

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

43. In a closed traverse,

44. The image of the objectives formed should lie

45. Overturning of vehicles on a curve can be avoided by using

46. The needle is adjusted for

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

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

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

50. The outer spindle attached to the lower plate in a transit theodolite is known as