A、To ensure control and monitoring of the avionics ventilation system
B、To control and monitor the cargo ventilation components
C、To control and monitor the packs
答案：A
A、To ensure control and monitoring of the avionics ventilation system
B、To control and monitor the cargo ventilation components
C、To control and monitor the packs
答案：A
A. Director 1 is switched to emergency mode.
B. The top line data buses are switched off.
C. Director 2 takes over automatically.
A. The RESET key is used to restart system operation.
B. The RESET key is used to cancel the previous selections.
C. The RESET key is used to cancel all the lighted calls.
A. The user breathes filtered cabin air.
B. The user breathes pure oxygen at a permanent positive pressure.
C. The user breathes pure oxygen.
A. Ailerons and spoilers 2,3,4,5 ?
B. Ailerons and spoilers 2,3,4?
C. Spoilers 2,3,4 only?
A. With slats/flaps extended.
B. With slats/flaps fully extended
C. In clean configuration
A. No, it is displayed only in flight.
B. Yes, provided the engines are running.
C. No, it is displayed only in flight with slats and flaps extended.
A. THS electric trim is lost.
B. THS trims at half speed.
C. THS electric trim is fully available.
A. When N2 is above 12%.
B. When an engine is started.
C. Only if the Aircraft Electrical Power fails.
A. Active.
B. Damping.
C. Re-centering.
A. Low voltage , low energy.
B. Low voltage , high energy.
C. High voltage , high energy.
