Auxillary Power Unit (APU) Flashcards

1
Q

What is the Maximum permissible load on the APU Generator?

A

40 KVA

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2
Q

What is the Maximum altitude for starting the APU?

A

37,000 Ft

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3
Q

What is the Maximum altitude for APU Operations?

A

41,000 Ft

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4
Q

Maximum Speed with APU Door Open (Not Operating)

A

220 Kts

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5
Q

Minimum Battery Voltage for APU start

A

22 V (Both Batteries)

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6
Q

What function does the MAIN BATTERY serve during an APU start?

A

Powers the APU ECU

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7
Q

What function does the APU BATTERY serve during an APU start?

A

Powers the APU Starter

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8
Q

When will the AVAIL switch-light illuminate?

A

2 Seconds after the RPM has reached 99% (99% +2Sec)

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