Surveying Online Test – Paper 3

1. Plane table surveying is a graphical method of surveying in which:

2. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

3. Horizontal equivalent of a uniform slope must be

4. Ten readings were recorded in a level field book. If the instrument was shifted after the 2nd and 6th readings, then the foresight readings are

5. Working edge of alidade is called

6. The included angles of the theodolite traverse are generally measured

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

8. The advantage of anallatic lens is

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

10. A Cadastral Map is a map having

11. The number of links in a 30 m metric chain is

12. The W.C.B of a line is preferred to a quadrantal bearing merely because

13. Error in tacheometric surveying is due to

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

15. The two-point problem as compared to the three-point problem is:

16. Automatic level has advantages of

17. A negative declination shows the magnetic meridian to the

18. Magnetic declination

19. The optical square is based on the principle of

20. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

21. Diurnal variation depends upon

22. Theodolite is an instrument used for measuring

23. Contour interval is proportional

24. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

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

26. For a station to be free from local attraction

27. The types of leveling used for Geodetic survey is

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

29. When several contours coincide, it indicates

30. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

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

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

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

34. An example of a level surface is

35. Positive error is caused if

36. 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

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

38. Offset angle taken in chain survey may be

39. A relatively fixed point of known elevation above the datum is called

40. "A curve of varying radius introduced between two branches of a compound curve is called

41. Size of a theodolite is specified by

42. A building is an obstacle to

43. Ranging is the process of

44. The multiplying constant of a tacheometer is

45. Contour lines

46. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

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

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

49. 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:

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