Surveying Online Test – Paper 3

1. The quadrantal system confines the user to measure the bearings from

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

3. For a station to be free from local attraction

4. The Philadelphia rod is a type of

5. Theodolite is an instrument used for measuring

6. Local attraction at a place may be due to

7. The method of leveling in which the plane table is set at only one station to take detail is known as:

8. Error in tacheometric surveying is due to

9. Isogonic lines are

10. A river is an obstacle to

11. The method of tacheometry in which the stadia hair intercept is fixed is known as

12. Azimuth (direct angles) is an angle measured in

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

14. If the level tube is out of adjustment by an angle e, when the telescope is rotated through 180°, it becomes

15. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

16. The contour line can cross one another on a map only in the case of

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

18. In a dumpy level, the objective and eyepiece lenses are made of two or more small lenses to obtain

19. *For the construction of highway/railway

20. For any point on the surface with a given inclination, the contour gradient possible is

21. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

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

23. The dip of the needle

24. Setting up the plane table consists of operations:

25. Positive error is caused if

26. If the magnetic declination is (-)6°0' and the reduced bearing of a line is S40°01'E, the true bearing of the line is

27. A discrepancy is the difference between

28. The advantage of anallatic lens is

29. Chain surveying is used for

30. The difference between the most probable value of a quantity and its observed value is

31. The horizontal distances obtained by tacheometry are corrected for

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

33. If the sights are vertical

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

35. The chain length which is not the standard metric chain length is

36. The maximum number of omitted measurements that can be calculated from latitudes and departures of a closed traverse is

37. The designation of scale recommended by IS: 1491-1959 is

38. Distomats is a type of

39. 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

40. 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

41. If Θ is the angle of the slope, L is the length of the slope, and H is the difference in elevation between the two ends of the link, then the slope correction will be

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

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

44. The reciprocal leveling eliminates

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

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

47. Direction of the closing error is given by

48. The prismatic compass and the surveyor's compass respectively give

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

50. The inclination of the needle to the horizontal towards the pole is called