The APU can be used as a source of bleed air for the aircraft ice protection systems.

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Multiple Choice

The APU can be used as a source of bleed air for the aircraft ice protection systems.

Explanation:
Bleed air for ice protection is taken from the engines because it provides the high temperature and pressure needed to heat the leading edges and prevent icing. The APU’s bleed air is designated for starting engines and for environmental control (packs/cabin pressurization), not for powering the ice protection system. In normal operation, the anti-ice system relies on engine bleed air, and APU bleed air isn’t used to run it. So the statement isn’t correct.

Bleed air for ice protection is taken from the engines because it provides the high temperature and pressure needed to heat the leading edges and prevent icing. The APU’s bleed air is designated for starting engines and for environmental control (packs/cabin pressurization), not for powering the ice protection system. In normal operation, the anti-ice system relies on engine bleed air, and APU bleed air isn’t used to run it. So the statement isn’t correct.

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