Surveying Online Test – Paper 3

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

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

3. The function of the leveling head is

4. An offset scale always has the zero mark at

5. Handles of chains are made of

6. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

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

8. Obstacle to ranging but not chaining is

9. Angular surveying in which both the horizontal and vertical positions of a point are obtained by optical means is known as

10. The accuracy of measurement in chain surveying does not depend upon

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

12. Normal tension is that pull which

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

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

15. Different grades are joined together by a

16. The effect of local attraction is observed in

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

18. The two-point problem and three-point problems are methods of:

19. Which one is the simplest survey?

20. An operation for determining the relative elevations of different points on the surface of the earth is known as

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

22. Prolongation of a chain line across an obstruction in chain surveying is done by

23. Two contour lines, having the same elevation

24. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

25. Short offsets are measured with

26. A poor fix of the table is:

27. Theodolite traverse is plotted more accurately by

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

29. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

30. The direct method of contouring is

31. *The instrument used to measure horizontal and vertical angle is

32. The fundamental lines of transit of the theodolite are

33. The orientation of the table is done by

34. The magnification of a telescope lens depends upon

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

36. Choose the correct statement:

37. The included angles of the theodolite traverse are generally measured

38. The range of accuracy in measuring distance by EDM with respect to ODM is

39. The process of bringing the vertical circle to the right of the observer is called

40. The vertical distance between any two consecutive contours is known as

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

42. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

43. The stadia hairs are not used in

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

45. The optical square is based on the principle of

46. Sensitivity of a level tube is expressed by

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

48. If the included angle is less than 180°, the deflection angle is

49. The method of leveling in which the plane table is set at only one station to take detail is known as:

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