APU Flashcards

1
Q

How much oil can can the APU hold?

A

8.7 quarts

5.7 in the gearbox
3 in the lines

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2
Q

While starting the APU during a move what point must you pass?

A

Solid red line on the flight line

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3
Q

What are the altitude limitations for using APU for bleed air start?

A

17000

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4
Q

Wind restrictions for opening APU door?

A

40 knots

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5
Q

Purpose of the APU?

A

Provide bleed air for engine starting or air conditioning?

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6
Q

Where does the electrical power to start the APU come from?

A

1 transfer bus or the airplane main battery

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7
Q

When starting the APU?

A

Make sure the battery switch is on, or else the APU will automatically shut off

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8
Q

How long should you run the APU prior to using it for bleed air source?

A

1 full minute

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9
Q

What indication for an APU fire?

A

APU fire warning light flashes red

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10
Q

How long is the start cycle for the APU?

A

120 sec

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11
Q

What happens to the fuel when the APU is running?

A

It is heated to prevent icing

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12
Q

APU emergency procedures

A

APU fire control switch, confirm, pull and rotate to stop. Hold for 1 sec, APU switch off

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13
Q

Proper steps for starting APU

A

Check ADB for any existing gripes, talk to MC about starting the APU, check out cranial, PC pouch and radio, check for FOD, grounding strap, chocks, pins, covers, leaks, APU/ stab components and circuit breakers

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14
Q

Proper steps for starting APU

A

Check ADB for any existing gripes, talk to MC about starting the APU, check out cranial, PC pouch and radio, check for FOD, grounding strap, chocks, pins, covers, leaks, APU/ stab components and circuit breakers

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15
Q

APU pulls fuel from which tank?

A

1 portside tank

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