Surveying Online Test – Paper 3

1. The instrument used for measuring area on a contour map is

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

3. A bearing noted N45° E represents

4. In a double-line river, contours are

5. Bowditch's rule is applied to

6. *Which instrument is not used in plane table

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

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

9. *Total station is

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

11. The intercept of a staff is

12. Local attraction in compass surveying may be due to

13. Positive error is caused if

14. *Due to the curvature of the earth, objects look

15. A chain 33 feet long and consisting of 16 links each 2(1/16) feet long is

16. Distomats is a type of

17. The type of survey in which horizontal and vertical distance is measured

18. If the magnetic bearing of a line is 65° and the true bearing 45°, then the magnetic declination is

19. In the stadia method, if k is the multiplying factor, s is the staff intercept, c is the additive constant of the instrument, then the distance equation is given by the expression

20. The spacing of cross-sections in the indirect method of contouring depends upon

21. In a closed traverse by included angles, the sum of measured interior angles should be equal to

22. Closed contours with higher value inside represent a

23. Contour lines of different elevations can unite to form one line only in the case of

24. A relatively fixed point of known elevation above the datum is called

25. Handles are connected to the link by

26. The whole circle bearing 338°42" converted into quadrantal form is given as

27. Height of instrument method of leveling, as compared to the rise and fall method, is

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

29. In a survey, it was recorded that Σrise = 0, then

30. The telescope is said to be normal when the

31. Plane table survey is considered good as compared to other surveys since:

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

33. A series of straight, parallel, and widely spaced contours on a map represent a

34. Compensating errors in chaining or other surveys are

35. The upper plate

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. Different grades are joined together by a

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

40. The position of a point can be fixed more accurately by

41. The angle of intersection of the horizon mirror and the index mirror of an optical square is

42. Geodetic survey is different from plane surveying because of

43. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

44. When the following scale is the smallest one

45. Area of triangle joining three corner points in comparison to the circle same three points:

46. Error in tacheometric surveying is due to

47. The main difference between theodolite and level is:

48. Chain surveying is used for

49. Chainage is the distance measured

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