Surveying Online Test – Paper 3

1. Choose the correct statement:

2. Azimuth and altitude of a star

3. Theodolite traverse is plotted more accurately by

4. The position of a point can be fixed more accurately by

5. Contour interval is proportional

6. 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

7. In survey works, declination varies from time to time and place to place. The main important variation is

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

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

10. *Accuracy of 'fix' by two-point problem is

11. 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

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

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

14. Diurnal variation depends upon

15. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

16. Methods adopted for traversing are

17. An example of a level surface is

18. The levels to which the earthwork will have to be carried out is known as

19. The angle subtended by the long chord of a simple curve at its center is equal to

20. An instrumental error in compass survey is because

21. A disadvantage of plane table survey is:

22. The main difference between theodolite and level is:

23. For Y level, Cooke's, and Cushing levels, the line of collimation should coincide with

24. *Total station measures

25. Negative errors are caused in the chain when its length is

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

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

28. A 30 m long chain when tested should not show errors exceeding

29. Obstacle to ranging but not chaining is

30. A river is an obstacle to

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

32. Leveling across a river is done by

33. The contour interval depends upon

34. The type of survey in which horizontal and vertical distance is measured

35. The absence of chromatic aberration in a telescope is known as

36. 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

37. 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

38. The shape of the vertical curve generally used is

39. A bearing noted N45° E represents

40. Metallic tapes are made of

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

42. Which one of the following may not be classified as personal error

43. An imaginary line lying through the surface of the ground, having a constant inclination to the horizontal, is known as

44. The difference between the sum of the measured angles and the theoretical sum of the angles of a closed traverse is called the

45. When a chain line encounters a river:

46. Theodolite is an instrument used for measuring

47. If a chain is found too short on testing, it can be adjusted by

48. The tie line is run through the survey to

49. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

50. A diagonal eyepiece is provided with a