Surveying Online Test – Paper 3

1. When several contours coincide, it indicates

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

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

4. *Total station measures

5. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

6. Which of the following instruments is generally used for baseline measurements?

7. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

8. Automatic level has advantages of

9. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

10. For a station to be free from local attraction

11. In the scale of a map is 1:25000, what does it mean:

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

13. A diagonal eyepiece is provided with a

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

15. The rise and fall method

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

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

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

19. Staff intercept means

20. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

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

22. The height of instrument method is

23. Tacheometry is adopted where

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

25. The scale used to measure and to set out the angles is

26. The stadia hairs are not used in

27. The projection of a line on a plane parallel to the meridian is known as

28. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

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

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

31. Metallic tapes are made of

32. Compensating errors in chaining or other surveys are

33. A Cadastral Map is a map having

34. Natural error in leveling is caused due to

35. *Accuracy of 'fix' by two-point problem is

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

37. The two-point problem is:

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

39. Local attraction at a place may be due to

40. The upper plate

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

42. The device used in computing the horizontal and vertical distances rapidly and conveniently is

43. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

44. If the staff is held vertical and the angle of elevation and depression are kept the same, then the horizontal distance between the instrument and staff station computed by observation will be

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

46. In a survey, it was recorded that Σrise = 0, then

47. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

48. Theodolite is an instrument used for measuring

49. 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

50. Isogonic lines are