Surveying Online Test – Paper 3

1. The length of an Engineer's chain is

2. A building is an obstacle to

3. 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

4. With the help of leveling, we measure

5. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

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

7. The height of instrument method is

8. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

9. The multiplying constant of a tacheometer is

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

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

12. A series of closely spaced contour lines represent a

13. The angular and linear measurement of the part of the traverse can be checked by

14. The method of tacheometry in which the stadia hair intercept is fixed is known as

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

16. To orient a plane table without two inaccessible points, the method generally adopted is:

17. The types of survey in which fieldwork and plotting proceed simultaneously are:

18. Right face and left face readings are taken to

19. A transition curve introduced between the tangent and the circular curve should

20. The correction for curvature as applied to staff reading is

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

22. Which of the following instruments is generally used for baseline measurements?

23. Offsets are

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

25. 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

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

27. You are requested to carry out a survey for the construction of a small airport in a mountainous region of Nepal. Which of the following surveying method will you choose?

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

29. Chain surveying is used for

30. The maximum allowable limit up to which a measurement may vary from the true value is known as

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

32. Well-conditioned triangle having an angle between

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

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

35. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

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

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

38. The permissible limits of error in chaining for measurement on rough or hilly ground are

39. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

40. The smaller angle which a survey line makes with the true meridian is known as

41. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

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

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

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

45. 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

46. The true bearing of a line can be calculated as (Where the declination is to the east.)

47. Contour interval, within the limits of a map

48. Offset angle taken in chain survey may be

49. Direct distance measurement method is more suitable to measure in

50. The longitudinal section of the surface of the bubble tube is