92.How is the latch pin released for maintenance operations ?

　By operating the outer control handle.

　By retracting the latch pin.

　By setting the desarming control handle to DISARME

正确答案：B

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569.If a duct overheat is detected?

568.Which sensor may signal pack overheat to the pack controller?

567.Which sensor pneumatically closes the Flow Control Valve in case of pack overheat?

566.If the pack controller fails ,the pack outlet temperature is controlled by:

565.What happens when the RAM AIR pushbutton is set to ON?

564.What flow is delivered by the pack with the PACK FLOW selector on LO and bleed air supplied by the APU?

563.What is the purpose of the RAM AIR flaps?

562.What is purpose of the bypass valve?

561.What is the function of the trim air valve?

560.How is the basic temperature regulated by the ACSC?