After engine start-up, which component supplies power to the DC system?

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Prepare for the CDC 3E052 Electrical Power Production Journeyman Exam. Utilize our extensive flashcards and multiple choice questions with detailed explanations to improve your skills. Ace your exam confidently!

Multiple Choice

After engine start-up, which component supplies power to the DC system?

Explanation:
After start, the engine-driven battery charging alternator takes over to supply the DC bus and keep the battery charged. The starter motor is only used to crank the engine, not to power the electrical system once the engine is running. An external battery pack is not part of normal operation. While the main alternator can contribute to the electrical supply, the unit specifically designated for feeding the DC system and charging the battery during run is the battery charging alternator, making it the best choice.

After start, the engine-driven battery charging alternator takes over to supply the DC bus and keep the battery charged. The starter motor is only used to crank the engine, not to power the electrical system once the engine is running. An external battery pack is not part of normal operation. While the main alternator can contribute to the electrical supply, the unit specifically designated for feeding the DC system and charging the battery during run is the battery charging alternator, making it the best choice.

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