HYDRAULIC PANEL Flashcards

1
Q

Can the aircraft be flown with a loss of all hydraulic systems?

A

No – you must have at least one

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2
Q

What occurs when you press the RAT MAN ON pushbutton?

A

The RAT extends providing pressure to the BLUE hydraulic system

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3
Q

Does the PTU transfer hydraulic fluid?

A

nO

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4
Q

How many hydraulic pumps are in the GREEN system?

A

a. 1 Engine

b. 1 PTU

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5
Q

How many hydraulic pumps are in the BLUE system?

A

a. 1 Electric

b. 1 RAT

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6
Q

How many hydraulic pumps are in the YELLOW system?

A

a. 1 Engine
b. 1 Electric
c. 1 PTU
d. 1 Hand pump

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7
Q

When does the BLUE ELEC PUMP operate?

A

a. After the first engine is started

b. If the BLUE PUMP OVRD pb on the MAINTENANCE panel has been pressed with no engine running

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8
Q

What is normal system hydraulic pressure?

A

3000 ± 200 PSI

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9
Q

Does the RAT automatically deploy with the loss of BLUE hydraulic pressure?

A

No, it must be deployed manually by the RAT MAN ON pushbutton

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10
Q

If the ACCU PRESS indicator is low and an external walkaround is to be completed, what should you do?

A

Obtain ground clearance then turn ON the YELLOW ELEC PUMP to pressurize the accumulator

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11
Q

What condition will cause the PTU to operate when the pushbutton is in AUTO?

A

A difference of 500 PSI between GREEN and YELLOW hydraulic systems

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12
Q

When is the PTU inhibited?

A

. PTU pushbutton OFF

b. First engine start
c. Parking brake is SET and only one ENG MASTER switch is ON
d. NWS in towing position and parking brake RELEASED
e. Cargo door operation (PTU is also inhibited for 40 seconds after the end of cargo door operation)

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13
Q

If the ECAM actions lead you to turn OFF the PTU for a Reservoir Overheat, will the FAULT light go out?

A

No, not until the overheat subsides

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14
Q

If the FAULT light in the PTU pushbutton is ON, are there any other indications on the HYD Panel?

A

Yes – FAULT light illuminated in the respective ENG PUMP pushbutton

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15
Q

Can the YELLOW ELEC PUMP run the PTU?

A

Yes

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16
Q

Name several items that run from only the GREEN system.

A

a. Landing gear
b. Normal brakes
c. Slats and flaps
d. Engine 1 reverser

17
Q

Name several items that run from only the YELLOW system.

A

a. Nosewheel steering
b. Alternate brakes
c. Parking brake
d. Cargo doors
e. Engine 2 reverser

18
Q

List several items that are powered by the BLUE system.

A

a. Slats

b. Emergency generator

19
Q

What does an amber FAULT light in the PTU pushbutton indicate (OLL)?

A

a. O - Overtemp in reservoir
b. L - Low air pressure in the reservoir
c. L - Low quantity in the reservoir

20
Q

What does an amber FAULT light in the ENG PUMP pushbutton indicate (POLL)?

A

a. P - Pump pressure low
b. O - Overtemp in reservoir
c. L - Low air pressure in the reservoir
d. L - Low quantity in the reservoir

21
Q

What does a FAULT light in the BLUE or YELLOW ELEC PUMP pushbutton indicate (POLLO)?

A

a. P - Pump pressure low
b. O - Overtemp in reservoir
c. L - Low air pressure in the reservoir
d. L - Low quantity in the reservoir
e. O - Overheat of pump

22
Q

Where are the HYD FIRE SHUTOFF VALVES located?

A

Between the respective reservoir and ENG pump

23
Q

What is the function of the hydraulic priority valves?

A
Hydraulic power to the flaps, slats, landing gear, NW steering, and emergency generator is cut off if pressure drops below a
predetermined value (high demand items)
24
Q

What is the purpose of the hand pump?

A

To provide Yellow hydraulic pressure for cargo door operation