Surveying Online Test – Paper 3

1. Height of the instrument is equal to:

2. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

3. A poor fix of the table is:

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

5. Error in tacheometric surveying is due to

6. 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

7. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

8. Closed contours with higher value inside represent a

9. *The method of leveling used to carry out the reconnaissance of an area is

10. A diagonal eyepiece is provided with a

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

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

13. The rise and fall method

14. Working edge of alidade is called

15. Axis method of traverse correction is used when

16. The limiting length of an offset does not depend upon

17. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

18. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

19. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

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

21. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

22. The instrument used to reproduce plans to a different scale is called

23. The height of instrument method is

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

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

26. The boundary of water of a still lake is

27. The process of bringing the vertical circle to the right of the observer is called

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

29. Tacheometry is best suited

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

31. 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

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

33. A series of closed contour lines on the map with higher to lower values inside them represent a

34. In normal condition, the difference of fore and back bearing should be?

35. For a station to be free from local attraction

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

37. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

38. The upper plate

39. Dumpy level is used when

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

41. A disadvantage of plane table survey is:

42. The difference between the most probable value of a quantity and its observed value is

43. The optical square is based on the principle of

44. The errors due to bad ranging are

45. The quadrantal system confines the user to measure the bearings from

46. Normal tension is that pull which

47. The advantage of anallatic lens is

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

49. The telescope is said to be normal when the

50. The distance between terminal points computed from a subsidiary traverse run between them is known as