Surveying Online Test – Paper 3

1. *For the construction of highway/railway

2. 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

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

4. A 20 cm theodolite means

5. A benchmark (BM) is a

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

7. The image of the objectives formed should lie

8. In a closed traverse by included angles, the sum of measured interior angles should be equal to

9. Least count is given by

10. For a line AB

11. In survey works, declination varies from time to time and place to place. The main important variation is

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

13. Right face and left face readings are taken to

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

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

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

17. 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?

18. Diurnal variation depends upon

19. The reciprocal leveling eliminates

20. The fundamental lines of transit of the theodolite are

21. Contour lines look to cross each other in the case of

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

23. In the scale of a map is 1:25000, what does it mean:

24. Local attraction at a place may be due to

25. For any point on the surface with a given inclination, the contour gradient possible is

26. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

27. In survey, it was recorded that Σfall = 0 then

28. Contour lines

29. A series of straight, parallel, and widely spaced contours on a map represent a

30. Sensitivity of a level tube is expressed by

31. The horizontal distances obtained by tacheometry are corrected for

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

33. Boning rod is used

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

35. 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

36. A diagonal eyepiece is provided with a

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

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

39. Direction of the closing error is given by

40. When several contours coincide, it indicates

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

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

43. Distomats is a type of

44. The stadia hairs are not used in

45. The order of accuracy of the elevation of points obtained from a contour map is equal to

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

47. An internal focusing type of telescope is focused by the movement of

48. In the case of leveling staff readings are taken by (In the case of target staff)

49. The needle is adjusted for

50. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be