题目内容

The primary flight control system uses conventional control wheel, column and pedals to _____ the primary flight control surfaces, ailerons, elevators and rudder.

A. command
B. commence
C. communicate
D. commend

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The ailerons provide roll control around the airplane’s _________ axis. The ailerons are positioned by pilots’ control wheels.

A. longitudinal
B. vertical
C. lateral
D. opposite

The primary flight control system uses __________ control wheel, column and pedals linked mechanically to hydraulic power control unitswhich command the primary flight control surfaces.

A. controversial
B. conventional
C. modern
D. modernized

Theailerons providecontrolaroundtheairplane's_axis.

A. pitch,lateral
B. roll,longitudinal
C. yaw,vertical
D. stall,horizontal

Theelevatorsprovidecontrolaroundtheairplane’s_axis.

A. pitch,lateral
B. roll,lateral
C. yaw,vertical
D. stall,horizontal