Surveying Online Test – Paper 3

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

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

3. 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

4. Sensitivity of a level tube is expressed by

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

6. The area of the earth's surface is taken into account only if the extent of the survey is more than

7. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

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

9. 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)

10. The two-point problem is:

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

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

13. A diagonal eyepiece is provided with a

14. If the sights are vertical

15. Chainage is the distance measured

16. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

17. Secular variation is an important factor because

18. In the scale of a map is 1:25000, what does it mean:

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

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

21. Parallax may be eliminated by

22. In a double-line river, contours are

23. The horizontal distances obtained by tacheometry are corrected for

24. *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

25. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

26. If the needle is truly magnetic and is not sluggish

27. The best method of interpolation of contours in the direct method of contouring is by

28. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

29. If n observations are taken, the accidental errors are proportional to

30. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

31. The types of survey used to fix property lines are

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

33. Obstacle to ranging but not chaining is

34. "Fiducial edge" is the working edge of

35. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

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

37. *Total station is

38. The purpose of triangulation in a chain survey is

39. Diurnal variation depends upon

40. The tacheometric method is a more suitable method for preparing the contour map of

41. Working edge of alidade is called

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

43. In a closed traverse, the algebraic sum of deflection angles is

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

45. A curve consists of two areas of different radii bending in the same direction and lying on the same side of their common tangent and their centers being on the same side of the curve is known as a

46. The angular and linear measurement of the part of the traverse can be checked by

47. The types of survey in which fieldwork and plotting proceed simultaneously are:

48. Height of the instrument is equal to:

49. The number of horizontal cross wires in a stadia diaphragm is

50. Direct distance measurement method is more suitable to measure in