Surveying Online Test – Paper 3

1. The needle is adjusted for

2. With the help of leveling, we measure

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

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

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

6. A river is an obstacle to

7. Which one of the following is not a personal error?

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

9. The three-point problem is concerned with:

10. Theodolite traverse is plotted more accurately by

11. True meridians

12. A staff reading taken on a benchmark/ known elevation or change point is known as

13. The strength of the fix of a plane table is:

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

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

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

17. The theory of probability is applied to

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

19. The purpose of triangulation in a chain survey is

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

21. The upper plate

22. Bowditch's rule is applied to

23. In survey, it was recorded that Σfall = 0 then

24. The types of survey in which fieldwork and plotting proceed simultaneously are:

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

26. The method most suitable for plotting in hilly areas is:

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

28. An offset more than 15m in length is known as

29. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

30. If n observations are taken, the accidental errors are proportional to

31. The reciprocal leveling eliminates

32. Boning rod is used

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

34. A chain is made up of mild steel or galvanized iron wire of diameter

35. *Error due to imperfect adjustment of plate level is termed as

36. The tie line is run through the survey to

37. An instrumental error in compass survey is because

38. Axis method of traverse correction is used when

39. A discrepancy is the difference between

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

41. The scale used to measure and to set out the angles is

42. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

43. A 20 cm theodolite means

44. Leveling across a river is done by

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

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

47. "Cross-sectioning" and "Longitudinal sectioning" is

48. Angle of 45° with the chain line may be set out with

49. *The line of collimation should be parallel to

50. Handles of chains are made of