超星 - Test for Lesson 7: Vocabulary and Structures - 查题吧

单选题

词汇与结构As the airplane _____ from cruise to landing, there can be multiple, narrow regions of altitudes and airspeeds where the vibration level can become severe.

A. transitions
B. transmits
C. transforms
D. transfers

单选题

词汇与结构In general, airframe vibrations can best be reduced by descending and ________ airspeed.

A. relieving
B. releasing
C. increasing
D. reducing

单选题

词汇与结构After descending and reducing airspeed, the existing vibration level is unacceptable, and if it is impractical to further reduce airspeed, the vibration level may be_____ to a previous, lower level by a slight increase in airspeed.

A. relieved
B. released
C. decreased
D. reduced

单选题

词汇与结构Engine indications are ______ on the center instrument panel by the Engine Instrument System.

A. displayed
B. exhibited
C. spread
D. lost

单选题

词汇与结构When the round red warning light above the indicator is illuminated, it ______ the limit for the engine parameter displayed below it has been reached or exceeded.

A. predicts
B. claims
C. indicates
D. forecasts

单选题

词汇与结构The red warning light remains illuminated until the engine parameter is reduced _____ the limit.

A. under
B. above
C. over
D. below

单选题

词汇与结构N1, N2, oil quantity, and engine vibration are displayed ______ from the engine sensors.

A. directly
B. indirectly
C. safely
D. properly

单选题

词汇与结构New generation aircraft are very dependent on ______ power because of the wide use of electronic flight instrument systems.

A. electrical
B. manual
C. hydraulic
D. electronic

单选题

词汇与结构Power for passenger services is provided to ________ the cabin, to operate the entertainment system, and to prepare food.

A. warm
B. light
C. cool
D. keep

单选题

词汇与结构The DC battery bus can _______ the batteries or receive power from the batteries, as required.

A. change
B. dump
C. charge
D. drive

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