A320: Hydraulic Systems | Quiz - Pilot George, L3 Airline Academy (CTC Aviation) Cadet Blog

While I have tried to ensure the information in this quiz is accurate, it is your own responsibility to check it against your airline / manufacturer manuals. With that said, if you spot any obvious errors then please let me know the question number and I'll aim to put it right!

Q10288 What is meant by OVHT on the Hydraulics SD page?

The hydraulic fluid temperature is excessive.

The electric pumps (BLUE or YELLOW) are overheating.

Hydraulic pressure has reduced to permit pump cool down.

The PTU has overheated and is no inoperable for the remainder of the flight.

Correct!

Incorrect!

Q10282 What are the normal and RAT operating pressures?

1500psi, 1250psi

3000psi, 2500psi

3000psi, 2250psi

2500psi, 2000psi

Correct!

Incorrect!

Q10284 Which systems are responsible for aircraft braking?

Green only

Green, Yellow backup.

Yellow, Green backup

Yellow only

Correct!

Incorrect!

Q10283 What is the RATS primary function?

Power the emergency generator

Pressurise the BLUE Hydraulics system

Provide both the emergency generator and BLUE Hydraulics system

Provide a backup means of propulsion

Correct!

Incorrect!

Q10290 Which systems have fluid shut off values. What operates these?

BLUE, Overhead fire push button.

Green and Yellow, it's automatic.

Green and Yellow, overhead fire push buttons.

YELLOW only. It's automatic.

Correct!

Incorrect!

Q10291 When does the PTU operate?

During self test only.

Cargo door operation.

When difference pressure is >500psi between GREEN and YELLOW.

First engine start until Engine shutdown.

Correct!

Incorrect!

Q10289 What causes the YELLOW electric pump to operate automatically, and is the YELLOW system always fully operational in such an event?

PTU Self Test, No.

Cargo door operation. No.

Cargo door operation, Yes.

PTU Self Test, Yes.

Correct!

Incorrect!

Q10292 What inhibits the use of the PTU?

Engines running.

Weight on wheels.

Yellow pump pb switch only.

Cargo door operation, NWS in towing position, Parking brake.

Correct!

Incorrect!

Q10285 How is the RAT re-stowed?

It retracts automatically once pressure is restored to BLUE system by other means.

By pressing the RAT retraction button on the overhead panel

On the ground by maintenance personel

Once deployed it can never be retracted

Correct!

Incorrect!

Q10286 When would typically cause the BLUE systems electronic pump to start automatically?

The BLUE system does not have an electric pump.

The electric pump won't start automatically and always requires pilot intervention.

In-flight or on the ground with one engine running

RAT deployment

Correct!

Incorrect!

Q10287 When does the FAULT light on the Hydraulics overhead panel extinguish following a Reservoir overhead?

Switching off the respective pump.

When it cools down again.

After disconnecting pressure sources from the respective system.

It won't. Once illuminated it remains on until maintenance action is taken.

Correct!

Incorrect!

Quiz: A320: Hydraulic Systems