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Civil Engineering Objective Questions { Air Port Engineering }

15.  Pick up the correct statement from the following :
A. Landing speed is directly proportional to the wing loading
B. Wing loading remaining constant, the take off distance is directly proportional to the powder loading
C. Neither (a) nor (b)
D. Both (a) and (b).

16. The air is blowing at a speed of 75 knots in the direction of the aircraft flying at a ground speed of 775 knots. The air speed of the aircraft, is
A. 775 knots
B. 75 knots
C. 850 knots
D. 675 knots.

17.  An aircraft is flying in an atmosphere of 30?C with a speed of 1260 km ph. Its speed is known as
A. subsonic
B. sonic
C. super-sonic
D. Mach.

18. Speed of
A. sound at 0?C is 1190 km p.h.
B. sound varies 2.4 km p.h. per degree centrigrade rise in temperature
C. sound at 0?C is called one Mach
D. All the above.

19. To cope up high temperature of 196?C, the taxi ways and aprons are constructed with
A. asphaltic concrete
B. rubberised tar concrete
C. plain concrete
D. all the above.

20. Pick up the correct statement from the following :
A. Tar concrete pavements are suitable if fuel spillage occurs
B. Rubberised tar concrete hot blast as well as spillage,
C. Epoxy asphalt concrete resists the jet fuels and provides more elastic pavement
D. All the above.

21.  The depressions and undulations in the pavement, are caused due to
A. improper compaction of subgrade
B. impact of heavy wheel loads
C. punching effect
D. all the above.

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