Cabin Pressure Panel Flashcards

1
Q

Which valves will receive a close command when the DITCHING pushbutton is depressed?

A

(ARPO)
- Avionics Inlet and Extract valves
- Ram air inlet
- Pack Flow Control valves
- Outflow valve (only if in AUTO mode)

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2
Q

Will the DITCHING pushbutton always close the outflow valve?

A

Not if the outflow valve is under manual control

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3
Q

Can the pilot control the outflow valve?

A

Yes, select MAN on the MODE SEL and use the MAN V/S CTL switch

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4
Q

How many controllers are in the pressurization system?

A

2, only one is used at a time and they swap roles after each landing

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5
Q

How do you manually switch controllers?

A

Switch MODE SEL to MAN for 10 seconds, then back to AUTO

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6
Q

What does an amber FAULT light in the MODE SEL pushbutton indicate?

A

Both automatic pressure controllers are faulty

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7
Q

From what source does the pressurization system obtain landing elevation?

A

FMGC database

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8
Q

When the mode selector is out of the AUTO position, how do you set a landing elevation?

A

Manually by selecting landing elevation via the LDG ELEV dial

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9
Q

What protects the airframe from excessive cabin differential pressure?

A

2 pressure relief valves (safety valves)

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10
Q

How many outflow valve motors are installed?

A

3, one for each CPC and one for manual control

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