Surveying Online Test – Paper 3

1. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

2. The levels to which the earthwork will have to be carried out is known as

3. Tilting levels are used for

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

5. The limiting length of an offset does not depend upon

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

7. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

8. Theodolite traverse is plotted more accurately by

9. The "point of the curve" of a simple circular curve is

10. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is

11. A series of closely spaced contour lines represent a

12. The Normal chord of a curve should be

13. The minimum horizontal distance between any two consecutive contours is known as

14. Contour interval, within the limits of a map

15. Butt rods are used for measuring

16. In a theodolite, staff readings for upper, middle, and lower crosshairs are 1.4, 0.9 & 0.4, respectively. If the height of the tower is 100m, then find the horizontal distance between the instrument station and the base of the tower

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

18. In leveling across a hill, the level should be set up on

19. The dip of the needle

20. Area of triangle joining three corner points in comparison to the circle same three points:

21. *The method of leveling used to carry out the reconnaissance of an area is

22. Different grades are joined together by a

23. The last reading of leveling is always at

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

25. Intersection is preferred to radiation when:

26. *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

27. The function of the leveling head is

28. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

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

30. Staff intercept means

31. The sensitivity of the bubble tube can be increased by

32. The bearing of the traverse line is calculated by

33. The rise and fall method of leveling provides a complete check on

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

35. *The two-peg method is used to check the parallelism between the

36. The order of accuracy of the elevation of points obtained from a contour map is equal to

37. Positive error is caused if

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

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

40. Negative errors are caused in the chain when its length is

41. 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

42. The principle of surveying to prevent the accumulation of errors is

43. Find the R.F. of 1cm = 5m

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

45. For accurate work, in comparison to the chain, the steel band is used because it

46. A poor fix of the table is:

47. In survey works, declination varies from time to time and place to place. The main important variation is

48. Metallic tapes are made of

49. The angle subtended by the long chord of a simple curve at its center is equal to

50. *The radius of curvature of the arc of the bubble tube is generally kept