Surveying Online Test – Paper 3

1. Cubic parabola is a type of

2. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

3. The Bench Mark of a point is 400m. Backsight reading at the benchmark is 2.20, and the foresight reading of point A is 2.10. Find the RL of point A

4. Direction of the closing error is given by

5. The scale used to measure and to set out the angles is

6. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

7. Resection is the method employed for:

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

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

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

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

12. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

13. In plane table instrument for horizontal & vertical measurement without chaining

14. The surface perpendicular to the direction of gravity is

15. The process of turning the telescope about the vertical axis in a horizontal plane is known as

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

17. *The radius of curvature of the arc of the bubble tube is generally kept

18. A river is an obstacle to

19. The two-point problem as compared to the three-point problem is:

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

21. Chain surveying is used for

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

23. The amount of correction due to local attraction at a place

24. If the length of a transition curve is such that the full super elevation is attained at the junction with the circular curve, the resultant curve is known as

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

26. A contour map of the area is essential before proceeding with the construction of

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

28. For the construction of a highway railway

29. A traverse survey can be plotted

30. 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

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

32. The benchmark of a station A is 500 m, and the back sight reading at the point A is 2 m & foresight reading of station B is 3 m. Find the RL of station B

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

34. The "point of tangency" of a simple circular curve is

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

36. Which one is the simplest survey?

37. Personal error in leveling occurs due to

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

39. A poor fix of the table is:

40. The instrument used for measuring area on a contour map is

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

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

43. Tacheometry is best suited

44. Two contour lines, having the same elevation

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

46. The theory of probability is applied to

47. Actually, which is not the method of plane tabling?

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

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

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