Which generators are driven by an IDG?

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Multiple Choice

Which generators are driven by an IDG?

Explanation:
An Integrated Drive Generator is mounted on the engine’s accessory gearbox and is driven by the engine. It provides electrical power with a constant 400 Hz frequency using a constant-speed drive, so the generators that are powered by an IDG are the engine-driven generators. The APU has its own generator driven by the APU, external power is a ground power source, and the maintenance bus is simply a power distribution path, not a generator.

An Integrated Drive Generator is mounted on the engine’s accessory gearbox and is driven by the engine. It provides electrical power with a constant 400 Hz frequency using a constant-speed drive, so the generators that are powered by an IDG are the engine-driven generators. The APU has its own generator driven by the APU, external power is a ground power source, and the maintenance bus is simply a power distribution path, not a generator.

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