How many levels of ice detection are provided ?提供

A. Feedback

B. Master DSDL

C. Message Data bus

A. At last engine shut down.

B. At electrical power off.

C. On ground, below 1500 feet or TAT>8℃ .

A. In a container at the bottom of the door.

B. In the overhead stowage compartment over the door.

C. In the cargo compartment.

A. Either LGCIU in turn.

B. Both LGCIUs simultaneously.

C. The crank handle.

A. On the toilet service panel

B. On the Forward Attendant panel

C. On both panels

A. The stops stay in high speed configuration

B. The stops stay where they were at the moment of the failure

C. The stops return to the low speed configuration when the slats are extended

A. By a white flashing light.

B. By a red flashing light.

C. By an amber flashing light.

A. A warning is triggered :too much fuel.

B. All the refuelling operations are stopped.

C. The corresponding REFUEL Valve coloses.相应的加油活门关闭

A. When the EMER EXIT LT selector is in the ON position.

B. When the EMER LIGHT pushbutton on the FAP is pressed and the 28 VDC ESS BUS is lost.

C. When the main lighting system has failed.

A. To damp door opening and closing.

B. To assist in opening and closing the door.

C. To assist in opening/closing and to pressurize the cylinder incase of an emergency opening.