Surveying Online Test – Paper 3

1. Obstacle to ranging but not chaining is

2. Revolving of the telescope of a theodolite in a horizontal plane is

3. Methods adopted for traversing are

4. The Normal chord of a curve should be

5. An instrumental error in compass survey is because

6. The purpose of triangulation in a chain survey is

7. For a line AB

8. Level surface is parallel to

9. Find the contour interval for the map, 1: 25000 in IS & FPS

10. The error eliminated by taking the mean of both face observations is

11. In survey works, declination varies from time to time and place to place. The main important variation is

12. Dumpy level is used when

13. 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

14. Closed contours with higher value inside represent a

15. Hydrographic survey deals with the mapping of

16. It is more difficult to obtain good results while measuring the horizontal distance by the stepping method

17. Magnetic declination

18. The fundamental lines of transit of the theodolite are

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

20. *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

21. Actually, which is not the method of plane tabling?

22. A Cadastral Map is a map having

23. Subtense bar is an instrument used for the measurement of horizontal distance in

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

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

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

27. A negative declination shows the magnetic meridian to the

28. The RL of the benchmark is 1000.0 m, and the back sight reading at the benchmark is 2.555 m. Find the staff reading of IS if the RL of IS is 1000.055 m

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

30. The theory of probability is applied to

31. Setting up the plane table consists of operations:

32. The orientation of the table is done by

33. In tacheometric survey, the method which provides easy reading of the staff is

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

35. The "point of the curve" of a simple circular curve is

36. *The line of collimation should be parallel to

37. Tellurometer uses

38. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

39. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

40. The angle which the true meridian makes with the magnetic meridian is called

41. The levelling head of a transit theodolite consists of

42. In a prismatic compass,

43. Height of the instrument is equal to:

44. The horizontal distances obtained by tacheometry are corrected for

45. Handles of chains are made of

46. The projection of a line on a plane parallel to the meridian is known as

47. The maximum allowable limit up to which a measurement may vary from the true value is known as

48. Which one is wrong?

49. A series of closely spaced contour lines represent a

50. Axis method of traverse correction is used when