Surveying Online Test – Paper 3

1. Different grades are joined together by a

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

3. If the observed reading of a level staff is 3.83m, and at the point sighted the staff is 0.15m off from the vertical through the bottom, the correct reading will be

4. The last reading of leveling is always at

5. In normal condition, the difference of fore and back bearing should be?

6. 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

7. Least count is given by

8. In the direct method of contouring, the process of locating points lying on a contour is known as

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

10. 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

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

12. In the intersection method of plane tabling, the number of stations needed to be set up is:

13. The line normal to the plumb line is known as

14. In an internal focusing type of telescope, the negative lens provided is

15. *When it is not possible to set up the level, midway between the two points, then the difference in elevation between them is measured by

16. When several contours coincide, it indicates

17. The main difference between theodolite and level is:

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

19. Distomats is a type of

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

21. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

22. A building is an obstacle to

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

24. Tellurometer uses

25. The graduations in a prismatic compass are

26. Level surface is parallel to

27. The contour lines merge or cross one another on the map in the case of

28. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

29. A river is an obstacle to

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

31. Choose the correct statement:

32. The effect of local attraction is observed in

33. In leveling, the station where the back sight and foresight readings are taken is known as

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

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

36. Isogonic lines are

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

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

39. Contour lines look to cross each other in the case of

40. The triangle formed by joining the position of the known points on plane table survey is known as:

41. The rise and fall method of leveling provides a complete check on

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

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

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

45. The direction of the steepest slope on a contour is

46. Plane table surveying is a graphical method of surveying in which:

47. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

48. A level line is a

49. The intercept of a staff is

50. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of