APU Flashcards

1
Q

What apu provides ?

A

Electric power

Pneumatic power

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2
Q

Can apu supply bleed air for the packs during takeoff ?

A

Yes, to avoid a thrust reductions when engines supply bleed air for the packs
This improve performance for takeoff when required

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3
Q

What’s the functions of apu in flight ?

A

Supply bleed airs packs

Start the engines

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4
Q

What’s is the max altitude that apu bleed supply two packs ? And one pack ?

A

2 15000

1 15000 a 20000

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5
Q

What the max altitude that’s apu supply electrical?

A

39800

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6
Q

O APU e controlado por quem ?

A

ECB eletrônico control box

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7
Q

Qual altitude máxima para dar start no apu com a bateria ?

A

250

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8
Q

Apu has own oil lubricantion system

A

True

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9
Q

What are the apu ground safety items ?

A

Automatic shutdown for apu fire
Automatic apu fire extinguishing
Horn in nose wheel sounds for apu fire

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10
Q

Where’s are the cockpit controls for the apu ?

A

Overhead panel

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11
Q

What’s is the name of the component that controls the APU start and operation ?

A

ECB eletrônico control box

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12
Q

Where is the APU inlet air flap ?

A

Bottom of the aft fuselage

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13
Q

The APU can provide pneumatic air to operate …. pack ate 20000

A

One pack

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14
Q

The apu can provide electrical power up to what altitude ?

A

Max certified altitude 39800

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15
Q

At how much percent of N the starter cuts out (APU)?

A

60% N

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16
Q

When the APU AVAIL lights will come on ?

A

When N of the APU reaches 95% the blue ON will extinguished and AvAil comes on

17
Q

When does you turning off the apu bleed air ?

A

After engine start to avoid ingesting exhaust gases

18
Q

For shut down APU what is the sequence ?

A

Turn off the bleed air before turn off the APU

19
Q

How long ApU bleed continue operate after shutdown?

A

60 to 120 minutos

20
Q

Why is the nominal delay time for APU shutdown with APU bleed air in use ?

A

60 to 120

21
Q

What is the different about an APU battery start ?

A

The scam does not display

22
Q

If the ecam APU page is not displayed what other indication appears to let you know the APU is running?

A

The green AVAIL light in the start pushbutton comes on

23
Q

Will the apu starter engage before the Flap open annunciation appears on the ECAM APU page ?

A

No

24
Q

Depois de três tentativas para ligar o Apu devemos esperar quanto tempo para uma nova partida ?

A

60min

25
Q

Max N speed?

A

107%

26
Q

Max EGT?

A

700 graus

27
Q

É permitido o uso da bleed para o uso do wing anti ice ?

A

Negativo

28
Q

Qual é o consumo de combustível pelo APU ?

A

2.2 Kg/ min