Surveying Online Test – Paper 3

1. The position of a point can be fixed more accurately by

2. 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

3. The length of the perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to

4. Personal error in leveling occurs due to

5. When several contours coincide, it indicates

6. A series of closely spaced contour lines represent a

7. The types of instrument generally used in the survey of gravity water supply system are:

8. The two-point problem and three-point problems are methods of:

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

10. Handles are connected to the link by

11. Boning rod is used

12. 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

13. The angle which the true meridian makes with the magnetic meridian is called

14. The method of leveling in which the plane table is set at only one station to take detail is known as:

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

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

17. If a chain is found too short on testing, it can be adjusted by

18. Ranging is the process of

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

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

21. In the case of a telescopic alidade, the adjustment done is

22. The effect of local attraction is observed in

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

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

25. Crosshairs in a surveying telescope are fitted

26. Short offsets are measured with

27. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

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

29. Contour lines of different elevations can unite to form one line only in the case of

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

31. Orientation is the operation of keeping the table at successive stations such that:

32. Obstacle to ranging but not chaining is

33. In a closed traverse, the closing error should not be more than (where N is the no. of sides of the traverse)

34. The whole circle bearing 338°42" converted into quadrantal form is given as

35. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

36. *Accuracy of 'fix' by two-point problem is

37. The fundamental lines of transit of the theodolite are

38. Open cross-staff is commonly used for setting out

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

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

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

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

43. Distomats is a type of

44. 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

45. The graduations in a prismatic compass are

46. In a closed traverse,

47. The method of plane tabling generally adopted to obtain details and plotting inaccessible points is:

48. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for:

49. The vertical distance between any two consecutive contours is known as

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