A、As a regulating valve.
B、As an ON/OFF valve.
C、A and B.
答案：B
A、As a regulating valve.
B、As an ON/OFF valve.
C、A and B.
答案：B
A. When the Nose landing Gear is retracted.
B. When the Nose landing Gear is downlocked.
C. Always
A. A cabin altitude of 8000Ft
B. A cabin altitude of 9550Ft
C. A cabin altitude of 11300Ft
A. It monitors the radio frequency selection.
B. It integrates all the crew communication functions.
C. It monitors the NAV frequency selection.
A. To change the pressure voltage into a frequency signal.
B. To transmit the tire pressure signal from the wheel to the axle.
C. To perform the permanent test of the system.
A. As soon as the aircraft is energized.
B. As soon as the flush switch is pressed in ,and only if the altitude pressure switch is closed.
C. As soon as the altitude pressure switch closes.
A. The autothrust disengages.
B. The autopilot engages.
C. The autothrust automatically engages with full thrust
A. Center tank and inner cells.
B. Center tank
C. Outer cells.
A. The other stick remains deactivated after the take over pushbutton is released.
B. The other stick remains activated after the take over pushbutton is released.
C. Both stick are deactivated.
A. Ram Air Turbine (RAT) extension.
B. Nothing.
C. Emergency generator activation.
A. It is impossible to engage the autopilot.
B. Engines running, it is impossible to engage the autopilot.
C. Engines shut down, it is impossible to engage the autopilot
