Surveying Online Test – Paper 3

1. A traverse survey can be plotted

2. 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

3. The shape of the vertical curve generally used is

4. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

5. In an internal focusing type of telescope, the negative lens provided is

6. The advantage of anallatic lens is

7. The needle is adjusted for

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

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

10. A river is an obstacle to

11. The inclination of the needle to the horizontal towards the pole is called

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

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

14. The accuracy of measurement in chain surveying does not depend upon

15. 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

16. Theodolite traverse is plotted more accurately by

17. Closed contours with higher value inside represent a

18. Azimuth (direct angles) is an angle measured in

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

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

21. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

22. The chain length which is not the standard metric chain length is

23. 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

24. A poor fix of the table is:

25. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

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

27. If the included angle is greater than 180°, the deflection angle is

28. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

29. When a chain line encounters a river:

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

31. The effect of local attraction is observed in

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

33. Theodolite is an instrument used for measuring

34. The triangle formed by joining the position of the known points on plane table survey is known as:

35. The bearing of the traverse line is calculated by

36. The perpendicular distance of the midpoint of the line from the reference meridian is known as

37. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

38. In the intersection method of plane tabling, the number of stations needed to be set up is:

39. The boundary of water of a still lake is

40. The correction for curvature as applied to staff reading is

41. In a prismatic compass,

42. A 20 cm theodolite means

43. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

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

45. The two-point problem and three-point problems are methods of:

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

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

48. The Normal chord of a curve should be

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

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