A、To stop the flow in case of leakage.
B、To shut off the return lines.
C、To separate the Normal form the Alternate Servovalves.
答案：A
A、To stop the flow in case of leakage.
B、To shut off the return lines.
C、To separate the Normal form the Alternate Servovalves.
答案：A
A. To ensure cabin ventilation in case both pack fail
B. To provide air to the pack compressor
C. To modulate the main air flow through the heat exchangers
A. In open circuit configuration
B. In intermediate circuit configuration, or in closed circuit configuration with airflow higher than the requested value
C. When the ambient Avionics bay temperature is above 34＇C(93.2＇F)
A. P.F.D
B. N.D
C. E/W
A. One of the two directional valves.
B. The enable solenoid valve.
C. The Linear Variable Differential Transducer.
A. The operating striker lever has to be replaced.
B. The diaphragm, in the mechanism housing, and the shear pin must be replaced.
C. The nitrogen bottle has to be replaced.
A. On the center pedestal in the cockpit.
B. On the forward attendant station.
C. On the aft attendant station.
A. In the Passenger Service Unit.
B. In the seat arm rest.
C. In the overheat stowage compartment.
A. CAPT dome light and RH CENTER lighting instrument panel.
B. F/O dome light and LH CENTER lighting instrument panel.
C. F/O dome light and F/O and RH CENTER lighting instrument panel.
A. On the right side fan cowl door.
B. On the left side fan cowl door.
C. On the left side thrust reverser "C" duct door.
A. At the wing tips.
B. Between tracks 3 and 4 in each wing.
C. Attached to track 4 offeset gearbox.
