Surveying Online Test – Paper 3

1. The direction of the steepest slope on a contour is

2. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

3. The triangle formed by joining the position of the known points on plane table survey is known as:

4. The amount of correction due to local attraction at a place

5. The accuracy of measurement in chain surveying does not depend upon

6. "Fiducial edge" is the working edge of

7. Setting up the plane table consists of operations:

8. The closing error is given by

9. A leveling station is a point where:

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

11. Closed contours with higher value inside represent a

12. The length of an Engineer's chain is

13. Direction of the closing error is given by

14. A straight line tangential to the longitudinal curve of the level tube at its center is known as

15. Subtense bar is an instrument used for the measurement of horizontal distance in

16. Working edge of alidade is called

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

18. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

19. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

20. Automatic level has advantages of

21. *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

22. *The instrument used to measure horizontal and vertical angle is

23. Short offsets are measured with

24. The image of the objectives formed should lie

25. An offset scale always has the zero mark at

26. 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

27. Tellurometer uses

28. The "point of the curve" of a simple circular curve is

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

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

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

32. Magnetic declination

33. When the following scale is the smallest one

34. Which one is wrong?

35. Negative errors are caused in the chain when its length is

36. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

37. In a prismatic compass,

38. Different grades are joined together by a

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

40. The minimum horizontal distance between any two consecutive contours is known as

41. *The line of collimation should be parallel to

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

43. The angle of intersection of a curve is the angle between

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

45. The theory of probability is applied to

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

47. The fix of the table is good when:

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

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

50. Axis method of traverse correction is used when