What is the purpose of the avionics ventilation system in the avionics bay?

A. PTU operation.

B. Cargo door operation.

C. Hand pump operation.

A. Switch over to0 the other channel.

B. Control goes to a fail-safe position.

C. The channel in control supplies the winding of the other channel.

A. By 26 V AC.

B. By 28 V DC.

C. By 115 V AC.

A. Immediately because it has operational consequences.

B. Before next flight.

C. Class 3 failures can be left uncorrected.

A. By pressing the transmission key on the ACP.

B. By pressing the CLR pushbutton.

C. By pressing the RESET key on any ACP.

A. On the toilet service panel

B. On the Forward Attendant panel

C. On both panels

A. Connected by ARINC buses to exchange distance data.

B. Connected by a suppressor coaxial which transmits an analog signal preventing simultaneous transmission.

C. Not connected.

A. All pilot lines.

B. All static lines.

C. Only the standby static line.

A. AC BUS 1 or AC BUS 2.

B. AC BUS 1 and AC BUS 2.

C. AC ESS BUS or EMERGENCY GENERATOR.

A. From cabin distribution ducts

B. From pack 1

C. From pack 2