The APU door is powered by which power source?

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Prepare for the GoJet Airlines CRJ-550 Test. Use flashcards, multiple choice questions, and detailed explanations to ace your exam!

Multiple Choice

The APU door is powered by which power source?

Explanation:
The APU door is electrically actuated, and its motor is powered by the APU’s own battery. This lets the door open to allow the APU to draw intake air and exhaust without needing the airplane’s main power or external ground power. Using the APU battery ensures the door can operate during APU start and when other power sources may not be available. The main battery, external power, or ground power aren’t used to drive the door motor in normal operation, which is why the APU battery is the responsible power source for the door.

The APU door is electrically actuated, and its motor is powered by the APU’s own battery. This lets the door open to allow the APU to draw intake air and exhaust without needing the airplane’s main power or external ground power. Using the APU battery ensures the door can operate during APU start and when other power sources may not be available. The main battery, external power, or ground power aren’t used to drive the door motor in normal operation, which is why the APU battery is the responsible power source for the door.

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