Surveying Online Test – Paper 3

1. If the temperature increases, the sensitivity of a bubble tube

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

3. The "point of tangency" of a simple circular curve is

4. Crosshairs in a surveying telescope are fitted

5. The designation of scale recommended by IS: 1491-1959 is

6. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

7. 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

8. Well-conditioned triangle having an angle between

9. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

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

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

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

13. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

14. Short offsets are measured with

15. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

16. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

17. Distomats is a type of

18. The trunion axis or transverse axis is

19. The upper plate

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

21. Two contour lines, having the same elevation

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

23. Level surface is parallel to

24. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

25. Azimuth (direct angles) is an angle measured in

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

27. Offsets are

28. 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

29. The line normal to the plumb line is known as

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

31. Leveling across a river is done by

32. Diurnal variation depends upon

33. Metallic tapes are made of

34. Boning rod is used

35. Tellurometer uses

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

37. Sensitivity of a level tube is expressed by

38. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

39. The purpose of triangulation in a chain survey is

40. An operation for determining the relative elevations of different points on the surface of the earth is known as

41. A 20 cm theodolite means

42. The effect of local attraction is observed in

43. Natural error in leveling is caused due to

44. Theodolite is an instrument used for measuring

45. The contour line can cross one another on a map only in the case of

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

47. The dip of the needle

48. An internal focusing type of telescope is focused by the movement of

49. Indirect ranging method is adopted when two points of the chain line are:

50. Which of the following terms is not associated with leveling: