What is the DC ESS network power source if TR1 has failed ?

A. Spoilers 1 to 5

B. Ailerons and spoilers 3 to 5

C. Ailerons and spoilers 2 to 5

A. The valve opens when the engine is stopped.

B. The valve opens when the engine is running.

C. The valve closes when the engine is running.

A. They cut off electrical supply after 30 seconds.

B. They supply the system for 3 seconds.

C. They supply the system after 30 seconds.

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. Dutch roll damping and yaw guidance order execution.

B. Turn coordination and engine failure compensation.

C. A and B

A. The DC essential bus.

B. The service bus.

C. The hot battery bus.

A. Engine running.

B. Engine running above 60% of N1.

C. Engine running above minimum idle.

A. The external ground cart is supplying the AC BUS 1 and 2

B. The External Power Contactor is controlled to close.

C. The external ground cart is supplying the AC/DC ground service buses.

A. CALL light flashes amber on the VHF 2 key.

B. The three green bars on the VHF 2 key come on.

C. CALL light comes on white on the VHF 2 key.

A. By using the lowest zone temperature demanded

B. By using the temperature demanded in the three zones

C. By using the highest zone temperature demand