词汇与结构The pressure maintained within the cabin is referred to as the _______ effective cabin altitude.
A. equivalent
B. parallel
C. similar
D. relevant
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词汇与结构Pressurization problems can seriously ______ the consciousness of the pilot.
A. disturb
B. impair
C. infer
D. affect
词汇与结构If a controller fails, pack control switches ______ to the other controller.
A. electronically
B. manually
C. electrically
D. automatically
词汇与结构Pack output is increased automatically during high pack demand periods to compensate for a failed pack or recirculation fan, or is limited during high bleed air demand periods such as for gear ______.
A. reiteration
B. retraction
C. restriction
D. reduction
词汇与结构Each pack can operate at reduced flow during certain some phases of flight to reduce fuel ________.
A. consumption
B. cost
C. expense
D. leakage