Surveying Online Test – Paper 3

1. Invar tapes are made of an alloy of

2. The W.C.B of a line is preferred to a quadrantal bearing merely because

3. "Cross-sectioning" and "Longitudinal sectioning" is

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

5. The rise and fall method

6. The angular error of closure or summation error should not exceed (Where N is the number of stations or sides.)

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

8. In the direct method of contouring, the process of locating points lying on a contour is known as

9. The instrument used for centering the plane table accurately is:

10. Which one of the following is not a personal error?

11. A chain is made up of mild steel or galvanized iron wire of diameter

12. The graduations in a prismatic compass are

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

14. Angle of 45° with the chain line may be set out with

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

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

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

18. Cubic parabola is a type of

19. In survey, it was recorded that Σfall = 0 then

20. Tellurometer uses

21. The intercept of a staff is

22. The image of the objectives formed should lie

23. The foremost work to be executed while traversing with a compass is

24. When several contours coincide, it indicates

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

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

27. The two-point problem is:

28. Which one is the simplest survey?

29. Chain surveying is used for a small area in

30. Normal tension is that pull which

31. 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)

32. Crosshairs in a surveying telescope are fitted

33. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

34. For a tacheometer, the additive and multiplying constants are respectively

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

36. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

37. Find the length of curve if radius of curve

38. A benchmark (BM) is a

39. Different grades are joined together by a

40. Automatic level has advantages of

41. The central angle subtended by an arc of 30m of the curve

42. Limiting the length of offset depends upon

43. *Due to the curvature of the earth, objects look

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

45. In plane table instrument for horizontal & vertical measurement without chaining

46. Axis method of traverse correction is used when

47. A series of closely spaced contour lines represent a

48. Size of a theodolite is specified by

49. The main difference between an optical square and a prism square is

50. 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