Surveying Online Test – Paper 3

1. Compensating errors in chaining or other surveys are

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

3. The two-point problem is:

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

5. 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

6. Contour interval, within the limits of a map

7. When a chain line encounters a river:

8. A poor fix of the table is:

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

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

11. The included angles of the theodolite traverse are generally measured

12. The three-point problem can be solved by:

13. If the quadrantal bearing of a line is N 35° W, then the whole circle bearing is

14. 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

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

16. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as

17. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

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

19. The closing error is given by

20. Handles are connected to the link by

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

22. The reciprocal leveling eliminates

23. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

24. When several contours coincide, it indicates

25. Normal tension is that pull which

26. Natural error in leveling is caused due to

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

28. 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

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

30. The magnetic north is indicated by

31. The types of instrument generally used in the survey of gravity water supply system are:

32. A contour map of the area is essential before proceeding with the construction of

33. The W.C.B of a line is preferred to a quadrantal bearing merely because

34. The graduations in a prismatic compass are

35. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

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

37. The intercept of a staff is

38. Find the length of curve if radius of curve

39. Personal error in leveling occurs due to

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

41. The optical square is based on the principle of

42. Local attraction in compass surveying may be due to

43. The magnification of a telescope lens depends upon

44. Obstacle to ranging but not chaining is

45. If the needle of the compass is sluggish the type of error will be

46. The instrument used for centering the plane table accurately is:

47. The triangle formed by joining the position of the known points on plane table survey is known as:

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

49. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

50. The types of errors that are of a cumulative nature and can be corrected are known as