APU Battery _______ V and _______ A?

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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

APU Battery _______ V and _______ A?

Explanation:
The APU battery on the CRJ-550 is sized to deliver enough energy for starting the APU and powering essential systems when external power isn’t available. It uses 24 V DC to match the aircraft’s electrical system, and a capacity of 43 ampere-hours provides ample energy for the start and brief operation of vital systems. A lower capacity (like 17 or 15 Ah) wouldn’t reliably sustain the start and necessary loads, and a different voltage such as 28 VDC would not conform to the aircraft’s 24-volt electrical architecture.

The APU battery on the CRJ-550 is sized to deliver enough energy for starting the APU and powering essential systems when external power isn’t available. It uses 24 V DC to match the aircraft’s electrical system, and a capacity of 43 ampere-hours provides ample energy for the start and brief operation of vital systems. A lower capacity (like 17 or 15 Ah) wouldn’t reliably sustain the start and necessary loads, and a different voltage such as 28 VDC would not conform to the aircraft’s 24-volt electrical architecture.

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