Which bus energizes the Cockpit Voice Recorder when powered?

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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

Which bus energizes the Cockpit Voice Recorder when powered?

Explanation:
The cockpit voice recorder is wired to the DC Essential Bus. This bus is designed to stay powered by the generators or the APU, even if other buses lose power, so the CVR remains energized and able to record during abnormal electrical conditions. The Main Battery Bus powers nonessential loads and isn’t relied on for continuous CVR operation when the aircraft is configured normally. The DC Emergency Bus powers immediate emergency systems, not the CVR’s primary feed, and the APU Direct Battery Bus serves APU-related needs rather than sustaining the CVR. So, the DC Essential Bus is the one that energizes the Cockpit Voice Recorder when powered.

The cockpit voice recorder is wired to the DC Essential Bus. This bus is designed to stay powered by the generators or the APU, even if other buses lose power, so the CVR remains energized and able to record during abnormal electrical conditions. The Main Battery Bus powers nonessential loads and isn’t relied on for continuous CVR operation when the aircraft is configured normally. The DC Emergency Bus powers immediate emergency systems, not the CVR’s primary feed, and the APU Direct Battery Bus serves APU-related needs rather than sustaining the CVR. So, the DC Essential Bus is the one that energizes the Cockpit Voice Recorder when powered.

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