Surveying Online Test – Paper 3

1. Tacheometry is best suited

2. Size of a theodolite is specified by

3. The resection by a two-point problem as compared to the three-point problem:

4. Resection is the method employed for:

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

6. 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

7. The number of links in a 30 m metric chain is

8. Revolving of the telescope of a theodolite in a horizontal plane is

9. 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

10. Positive error is caused if

11. The closing error is given by

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

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

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

15. Magnetic declination

16. If the included angle is greater than 180°, the deflection angle is

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

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

19. Working edge of alidade is called

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

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

22. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

23. The strength of the fix of a plane table is:

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

25. With the help of leveling, we measure

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

27. The projection of a line on a plane perpendicular to the meridian is known as

28. When the following scale is the smallest one

29. The horizontal distances obtained by tacheometry are corrected for

30. The inclination of the needle to the horizontal towards the pole is called

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

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

33. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

34. Closed contours with higher value inside represent a

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

36. The magnification of a telescope lens depends upon

37. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

38. "A curve of varying radius introduced between two branches of a compound curve is called

39. When a chain line encounters a river:

40. Which one of the following may not be classified as a natural error?

41. The outer spindle attached to the lower plate in a transit theodolite is known as

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

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

44. Contours are used to determine

45. Placing the table over the station such that the station plotted on the sheet is exactly above the corresponding station on the ground is:

46. The number of horizontal cross wires in a stadia diaphragm is

47. Under Survey, "working from whole to part" is done

48. Tilting levels are used for

49. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

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