Surveying Online Test – Paper 3

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

2. If the included angle is greater than 180°, the deflection angle is

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

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

5. A relatively fixed point of known elevation above the datum is called

6. 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

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

8. 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

9. An anallatic lens is provided in a tacheometer to measure the horizontal distance.

10. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

11. The survey stations set up during traversing with the compass should be such that

12. Height of the instrument is equal to:

13. The angle subtended by the long chord of a simple curve at its center is equal to

14. In chain survey execution, this first step taken is

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

16. The perpendicular distance of the midpoint of the line from the reference meridian is known as

17. The upper plate

18. Placing the table over the station such that the station plotted on the sheet is exactly above the corresponding station on the ground is:

19. *The two-peg method is used to check the parallelism between the

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

21. A diagonal eyepiece is provided with a

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

23. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

24. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

25. The number of links in a 30 m metric chain is

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

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

28. The stadia hairs are not used in

29. A traverse consists of six sides; then the sum of external angles must be

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

31. Dumpy level is used when

32. A river is an obstacle to

33. *For the construction of highway/railway

34. Tellurometer uses

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

36. Any arbitrarily assumed level line from which vertical distances are measured is known as

37. The Normal chord of a curve should be

38. Prolongation of a chain line across an obstruction in chain surveying is done by

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

40. A scale representing either three units or only one unit and its fractions up to the second place of the decimal point is

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

42. The rise and fall method of leveling provides a complete check on

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

44. The surface perpendicular to the direction of gravity is

45. Natural error in leveling is caused due to

46. "A curve of varying radius introduced between two branches of a compound curve is called

47. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

48. Methods adopted for traversing are

49. Area of triangle joining three corner points in comparison to the circle same three points:

50. Short offsets are measured with