Surveying Online Test – Paper 3

1. Chain surveying is used for a small area in

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

3. Leveling across a river is done by

4. Indirect ranging method is adopted when two points of the chain line are:

5. 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

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

7. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

8. In a double-line river, contours are

9. Any arbitrarily assumed level line from which vertical distances are measured is known as

10. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

11. The optical square is based on the principle of

12. Personal error in leveling occurs due to

13. The method of tacheometry in which the stadia hair intercept is fixed is known as

14. For the route survey of a contour map, the method used is

15. Limiting the length of offset depends upon

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

17. An example of a level surface is

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

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

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

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

22. Permanent adjustment is carried out to

23. While measuring horizontal distance by stepping method we should follow

24. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

25. Find the contour interval for the map, 1: 25000 in IS & FPS

26. A straight line tangential to the longitudinal curve of the level tube at its center is known as

27. *Total station measures

28. The accuracy required in precise leveling is of the order of (Where K is the total distance of the level line in KM)

29. Find the length of curve if radius of curve

30. The survey stations set up during traversing with the compass should be such that

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

32. The method of tacheometry in which the observation is made with stadia wires with a variable interval is known as

33. If the distance between two points A and B is 1km, the combined correction for curvature and refraction will be

34. The magnification of a telescope lens depends upon

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

36. The difference between a level line and a horizontal line is that

37. Azimuth (direct angles) is an angle measured in

38. Local attraction in compass surveying may be due to

39. In a closed traverse,

40. Theodolite is an instrument used for measuring

41. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

42. The function of the leveling head is

43. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

44. The location of the contour gradient for a highway is best set out from

45. 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

46. The theory of probability is applied to

47. *The correction for refraction is given by

48. Chainage is the distance measured

49. The most probable value of an observed quantity available from a given set of observations is the one for which the sum of the square of errors is a minimum. This statement is called

50. In compass surveying