Random Systems Questions Flashcards

1
Q

How many DU - Display Units can be reverted and which are they?

A

Two can be reverted

MFD 1 and MFD 2

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2
Q

What is the priority for DU reversion?

A

Hightest to Lowest: PFD, EICAS, MFD

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3
Q

When does automatic EICAS decluttering occur?

A

xx ???? xx

I believe it is 30 seconds after Take Off if all indications are normal

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4
Q

What maximum wind gust can the doors sustain when partially open and open and locked in position.

A

40 KTS / 65 KTS

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5
Q

The photoluminescent strips must be charged prior to the first flight of the day… how long?
Once charged, how long are they good for?

A

15 minutes

Available for 7 hours

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6
Q

Emergency Light Power Units,
How many?
Which bus are they connected to?
How long can they supply emergency power to all emergency light?

A

4 ELPU’s
DC Bus 1
Supply all emergency lights for 10 minutes

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7
Q

The electromechanical latch on the cockpit door is powered by which bus?

A

DC BUS 2

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8
Q

Explain the notification of the EMERGENCY ENTRY system

A

Actuating the EMERG ENTRY pushbutton starts the chime sequence:
4 second Chime Chime
Repeated 3 times at 9 second intervals
After the third chime cycle door opens if the INHIB pushbutton is not pressed within 30 seconds from start of sequence

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9
Q

How is the water system pressurized?

A

Engine and APU bleed air pressurize the potable water system

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10
Q

If bleed air is not available, how is the potable water system pressurized?

A

through an OPTIONAL compressor system

DO WE HAVE ONE?? NOT SURE??

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11
Q

How is the waste system pressurized?

A

By a vacuum generator that creates differential pressure on the ground through 18,000 ft. Above that, cabin differential pressure is enough to transport the waste.

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12
Q

On the AIR COND / PNEUMATIC control panel, what does pushing the RECIRC push button accomplish?

A

Pushed in allows normal function of the RECIRC fans.

Pushed out turns off BOTH RECIRC FANS

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13
Q

On the AIR COND / PNEUMATIC control panel, what does pushing the X BLEED, BLEED 1/2 OR APU BLEED push button accomplish?

A

Pushed in allows the automatic operation by the AMS

Pushed out, manually closes the respective Bleed Valve

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14
Q

When are the emergency lights automatically illuminated?

A

When armed and DC Buses lose all power

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