Surveying Online Test – Paper 3

1. A building is an obstacle to

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

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

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

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

6. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

7. Intersection is preferred to radiation when:

8. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

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

10. A leveling station is a point where:

11. Choose the correct statement:

12. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is

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

14. In a survey, it was recorded that Σrise = 0, then

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

16. The representation of general topography of a very flat terrain is possible only

17. Height of instrument method of leveling, as compared to the rise and fall method, is

18. For a tacheometer, the additive and multiplying constants are respectively

19. The area of the earth's surface is taken into account only if the extent of the survey is more than

20. 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

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

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

23. Contour interval, within the limits of a map

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

25. The longest chain line passing through the center of the area is known as

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

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

28. 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

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

30. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

31. Bowditch's rule is applied to

32. *The correction for refraction is given by

33. The angle that can be set by a French cross-staff is

34. Secular variation is an important factor because

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

36. The prismatic compass and the surveyor's compass respectively give

37. An offset scale always has the zero mark at

38. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

39. The graduations in a prismatic compass are

40. True meridians

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

42. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

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

44. Azimuth and altitude of a star

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

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

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

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

49. If the needle of the compass is sluggish the type of error will be

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