Surveying Online Test – Paper 3

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

2. Hydrographic survey deals with the mapping of

3. "Fiducial edge" is the working edge of

4. The spacing of cross-sections in the indirect method of contouring depends upon

5. Contour interval, within the limits of a map

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

7. The absence of chromatic aberration in a telescope is known as

8. Find the contour interval for the map, 1: 25000 in IS & FPS

9. The upper plate

10. The intercept of a staff is

11. The surface perpendicular to the direction of gravity is

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

13. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

14. The quadrantal bearing of a line is determined by:

15. The permissible limits of error in chaining for measurement on rough or hilly ground are

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

17. The survey stations set up during traversing with the compass should be such that

18. The number of links in a 30 m metric chain is

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

20. A series of straight, parallel, and widely spaced contours on a map represent a

21. The last reading of leveling is always at

22. Ranging is the process of

23. Obstacle to ranging but not chaining is

24. The types of instrument generally used in the survey of gravity water supply system are:

25. 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

26. Automatic level has advantages of

27. Chain surveying is used for a small area in

28. 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

29. Size of a theodolite is specified by

30. Theodolite is an instrument used for measuring

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

32. Overturning of vehicles on a curve can be avoided by using

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

34. The method most suitable for plotting in hilly areas is:

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

36. A traverse survey can be plotted

37. Horizontal equivalent of a uniform slope must be

38. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

39. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

40. Normal tension is that pull which

41. A disadvantage of plane table survey is:

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

43. Which one of the following may not be classified as a natural error?

44. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

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

46. Working edge of alidade is called

47. 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

48. A level tube is used to make the line of sight horizontal. It is filled with

49. A river is an obstacle to

50. The bearing of the traverse line is calculated by