Surveying Online Test – Paper 3

1. A field is measured with a 1.0 percent too-long chain is found to be 10,000 acres. The corrected area of the field will be

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

3. The angle of intersection of the horizon mirror and the index mirror of an optical square is

4. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

5. The orientation of the table is done by

6. Magnetic declination

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

8. Geodetic survey is different from plane surveying because of

9. Short offsets are measured with

10. The reciprocal leveling eliminates

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

12. Horizontal equivalent of a uniform slope must be

13. 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

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

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

16. Plane table survey is considered good as compared to other surveys since:

17. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

18. The quadrantal bearing of a line is determined by:

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

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

21. 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

22. Bench marks are fixed by

23. The method of offset laying involving minimum measurement on the ground is

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

25. The foremost work to be executed while traversing with a compass is

26. The main difference between theodolite and level is:

27. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

28. The Philadelphia rod is a type of

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

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

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

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

33. 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

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

35. Height of the instrument is equal to:

36. The graduations in a prismatic compass are

37. Which one is the simplest survey?

38. 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

39. In leveling across a hill, the level should be set up on

40. Level surface is parallel to

41. The sag correction is always

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

43. If the formation level is less than the ground level, the difference between them at any point will give the

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

45. Metallic tapes are made of

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

47. The contour line can cross one another on a map only in the case of

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

49. When a chain line encounters a river:

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