A、The vacuum generator stays operating.
B、The vacuum generator stops after 15 seconds
C、The vacuum generator stops on ground.
答案：B
A、The vacuum generator stays operating.
B、The vacuum generator stops after 15 seconds
C、The vacuum generator stops on ground.
答案：B
A. In parallel
B. In series
C. In a loop
A. The two wing tank pumps are in operation.
B. Only one wing tank pump supplies its associated engine.
C. Both pumps are stopped.
A. The MCDU.
B. The data loader.
C. The GSE.
A. Blower fan
B. Aft cargo door
C. Pressure Regulating Valve
A. In flight, not on ground.
B. On ground,not in flight.
C. In icing conditions only.
A. A fixed high pressure cylinder.
B. A high pressure portable cylinder.
C. A fixed cylinder with masks and a breathing hood system.
A. When the aircraft speed is above 200kts.
B. When the aircraft is stopped on the ramp.
C. When the aircraft altitude is above 2000feet.
A. When hydraulic pressure is lost.
B. When ELAC 1 signal is lost.
C. When FAC 2 and 3 signal is lost.
A. Upper area.
B. Left memo area.
C. Right memo area.
A. Spoilers 1 to 5
B. Ailerons and spoilers 3 to 5
C. Ailerons and spoilers 2 to 5
