Surveying Online Test – Paper 3

1. An offset more than 15m in length is known as

2. The longest chain line passing through the center of the area is known as

3. A Cadastral Map is a map having

4. The instrument used to reproduce plans to a different scale is called

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

6. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

7. The shape of the vertical curve generally used is

8. True meridians

9. An imaginary line connecting the points of equal elevation on the ground surface is known as

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

11. Contours are used to determine

12. The representation of general topography of a very flat terrain is possible only

13. The angle which the true meridian makes with the magnetic meridian is called

14. The purpose of triangulation in a chain survey is

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

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

17. When several contours coincide, it indicates

18. 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

19. The contour lines are perpendicular to the

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

21. To orient a plane table without two inaccessible points, the method generally adopted is:

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

23. The telescope is said to be normal when the

24. When the following scale is the smallest one

25. Height of the instrument is equal to:

26. Different grades are joined together by a

27. The rise and fall method

28. Actually, which is not the method of plane tabling?

29. The method of tacheometry in which the stadia hair intercept is fixed is known as

30. Direction of the closing error is given by

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

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

33. Distomats is a type of

34. Natural error in leveling is caused due to

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

36. In compass surveying

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

38. A transition curve introduced between the tangent and the circular curve should

39. The error eliminated by taking the mean of both face observations is

40. 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

41. Setting up the plane table consists of operations:

42. Which one is wrong?

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

44. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

45. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

46. A staff reading taken on a benchmark/ known elevation or change point is known as

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

48. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

49. 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)

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