Surveying Online Test – Paper 3

1. The method of offset laying involving minimum measurement on the ground is

2. The resection by a two-point problem as compared to the three-point problem:

3. To orient a plane table without two inaccessible points, the method generally adopted is:

4. The image of the objectives formed should lie

5. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

6. An operation for determining the relative elevations of different points on the surface of the earth is known as

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

8. The outer spindle attached to the lower plate in a transit theodolite is known as

9. Geodetic survey is different from plane surveying because of

10. The magnetic north is indicated by

11. Staff intercept means

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

13. The three-point problem is concerned with:

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

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

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

17. Personal error in leveling occurs due to

18. 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

19. The maximum angular error in laying the direction is 3°; if this maximum displacement of the point on paper is the same for both sources of error, the accuracy in the offset measurement will be

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

21. If the intercept on the vertical staff is observed as 1.5mm from a tacheometer, the horizontal distance between the tacheometer and staff station is

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

23. The two-point problem as compared to the three-point problem is:

24. Overturning of vehicles on a curve can be avoided by using

25. 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

26. Contours are used to determine

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

28. A traverse deflection angle is

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

30. In a closed traverse,

31. Invar tapes are made of an alloy of

32. The foremost work to be executed while traversing with a compass is

33. The principle of surveying to prevent the accumulation of errors is

34. The device used in computing the horizontal and vertical distances rapidly and conveniently is

35. A level line is a

36. For the construction of a highway railway

37. For accurate work, in comparison to the chain, the steel band is used because it

38. The tie line is run through the survey to

39. The purpose of triangulation in a chain survey is

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

41. When several contours coincide, it indicates

42. Chain surveying is used for a small area in

43. An invert is taken when the point is

44. 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

45. Butt rods are used for measuring

46. The height of instrument method is

47. 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

48. The intercept of a staff is

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

50. *Total station measures