AUXILIARY POWER UNIT A320

The majority of the APU's system logic is performed by: A bleed monitoring computer (BMC). An electronic control box (ECB). An APU master control box.

If fuel pressure to the APU is too low from the left wing or left center tank boost pumps, pressure will be available. From the APU fuel pump auomatically. From the APU fuel pump when selected "ON". From gravity fed fuel.

The APU will enter a cool down cycle of up to two minutes before shutting down: Everytime the APU is shut down. If APU bleed air is being used. If the APU is shut down using the APU Fire switch.

When the APU MASTER SW is selected ON?. The APU computer automatically starts the APU. The APU computer automatically completes a self-test, opens the air intake flap and supplies fuel pressure. Connects the APU generator to the aircraft electrical system. The APU door opens.

What is the function of the APU GEN push button located on the overhead electrical panel?. When selected OFF, the APU generator is de-energized. It is normally left in the lights out position. Both A and B are correct. None of the above.

The APU is available supply bleed air and/or electrical power at: 80% N:. 85% N. 95% N.

The APU will automatically shut down and it's fire extinguisher will automatically discharge in the event of an APU fire: In the air. On the ground. A and B are correct.

The a APU START push button, when selected ON, will: Connect the APU generator to the aircraft electrical system. Open the air intake flap and supply fuel pressure. Start the APU if the APU MASTER SW was previously selected ON. None of the above.

The APU system page will appear on the ECAM: Automatically whenever the APU is started and AC power is available. When selected by the crew. Both A and B are correct. None of the above.

The APU may be started up to what altitude?. The APU can be started at any altitude using normal aircraft electrical power. The APU can be started up to 35,000 feet using only the aircraft batteries. The APU can be started up to 30,000 feet using only the aircraft batteries. Both A and B are correct.