Surveying Online Test – Paper 3

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

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

3. Choose the correct statement:

4. The function of the leveling head is

5. The Philadelphia rod is a type of

6. Pick up the odd statement

7. 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

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

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

10. A 30 m long chain when tested should not show errors exceeding

11. The angle that can be set by a French cross-staff is

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

13. *The correction for refraction is given by

14. The best method of interpolation of contours in the direct method of contouring is by

15. Tellurometer uses

16. The horizontal distances obtained by tacheometry are corrected for

17. If the included angle is less than 180°, the deflection angle is

18. The levelling head of a transit theodolite consists of

19. The types of errors that are of a cumulative nature and can be corrected are known as

20. If the formation level is less than the ground level, the difference between them at any point will give the

21. The telescope is said to be normal when the

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

23. Automatic level has advantages of

24. The intercept of a staff is

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

26. A discrepancy is the difference between

27. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

28. Which one of the following may not be classified as personal error

29. The upper plate

30. Personal error in leveling occurs due to

31. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be

32. The effect of local attraction is observed in

33. The instrument used for measuring area on a contour map is

34. The prismatic compass and the surveyor's compass respectively give

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

36. Level surface is parallel to

37. Prolongation of a chain line across an obstruction in chain surveying is done by

38. The surface perpendicular to the direction of gravity is

39. 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

40. In the whole circle system, the bearings are measured

41. The two-point problem is:

42. The whole circle bearing 338°42" converted into quadrantal form is given as

43. For a tacheometer, the additive and multiplying constants are respectively

44. The smaller angle which a survey line makes with the true meridian is known as

45. An operation for determining the relative elevations of different points on the surface of the earth is known as

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

47. *The line of collimation should be parallel to

48. A diagonal eyepiece is provided with a

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

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