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When is Apu on? 1) When the APU RUNNING message is displayed and the APU selector is on 2) When the RPM exceeds a certain value 3) When the engine is running 4) When the APU selector is off
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When is Apu on?

1) When the APU RUNNING message is displayed and the APU selector is on
2) When the RPM exceeds a certain value
3) When the engine is running
4) When the APU selector is off

User Bosie
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8.2k points

1 Answer

2 votes

Final answer:

The Apu will be on when the APU selector is off.

Step-by-step explanation:

Apu, in this context, refers to an Auxiliary Power Unit found in aircraft. It is typically used to provide power for various systems when the main engines are not running. Based on the options given, the correct answer is 4) When the APU selector is off. The APU will be on when the selector switch is in the off position.

User Dan Lowe
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