Surveying Online Test – Paper 3

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

2. Short offsets are measured with

3. In compass surveying

4. A 20 cm theodolite means

5. 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

6. Setting up the plane table consists of operations:

7. Chain surveying is used for a small area in

8. The stadia hairs are not used in

9. When the angular and linear measurements are equally precise in traversing, the balancing of the traverse is done by:

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

11. If the formation level is less than the ground level, the difference between them at any point will give the

12. Direction of the closing error is given by

13. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

14. When several contours coincide, it indicates

15. The place where the reading is taken is known as

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

17. In a closed traverse,

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

19. If the needle of the compass is sluggish the type of error will be

20. The height of instrument method is

21. The angular and linear measurement of the part of the traverse can be checked by

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

23. A poor fix of the table is:

24. Which of the following terms is not associated with leveling:

25. Positive error is caused if

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

27. The absence of spherical aberration in a telescope is known as

28. True meridians

29. The angle that can be set by a French cross-staff is

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

31. If the magnetic bearing of the sun at noon at a place in the southern hemisphere is 150°, the magnetic declination at that place is

32. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

33. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

34. *Total station is

35. The direct method of contouring is

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

37. The limiting length of an offset does not depend upon

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

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

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

41. A bearing noted N45° E represents

42. If the temperature increases, the sensitivity of a bubble tube

43. Contour interval, within the limits of a map

44. The central angle subtended by an arc of 30m of the curve

45. With the help of leveling, we measure

46. The process of turning the telescope about the vertical axis in a horizontal plane is known as

47. Open cross-staff is commonly used for setting out

48. In the case of a telescopic alidade, the adjustment done is

49. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

50. Tilting levels are used for