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PSA Training > Hydraulics > Flashcards

Hydraulics Flashcards

1
Q

Normal Quantity

Normal Pressure

A

Between 45% - 85%
3000 psi
Green range is 1800-3200 psi

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2
Q

Which pumps are Accumulators

A

1B (IDG 2)
2B (IDG 1)
3A

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2
Q

How is the fluid cooled?

A

Ram air Heat exchanger in aft equipment bay

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3
Q

Type of fluid

A

Skydrol

Purple in color, highly corrosive

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4
Q

When are the B pumps on?

A

Selected on or auto and in T/O or landing configuration with flaps out of zero

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5
Q

When are 1B or 2B pumps load shed

A

When cross side engine driven generator fails

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6
Q

Which pumps are ACMP’s

A

1B, 2B, 3A, 3B

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7
Q

Which pumps are automatically operated when ADG deployed

A

3B regardless of switch position

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8
Q

How many Accumulators

A

(5) one for each system and one for each set of brakes

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9
Q

What determines when HYD 3B pump operates

A

Switch Position
Flap Position
ADG deployed (emergency power)

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10
Q

When all hydraulic pressure is lost to the brakes do you have any braking capability

A

Yes enough for 6 applications due to the accumulators

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