Airbus A330 – Hydraulics - SmartCockpit - Airline training guides, Aviation, Operations, Safety

There is a BLUE LO AIR PRESS alarm and there is a 'FAULT' indication on BLUE ENG 1 pump pb. Which one of the following statements is true?

The BLUE ENG pump may be restored for approach.

The BLUE system cannot be restored for approach.

The BLUE ELEC pump must be set to on to recover the system.

Correct! Wrong!

In the event of hydraulic green low pressure, heavy load users are isolated to give priority to:

Landing gear and nose wheel steering.

Ram Air Turbine (RAT).

Flight controls and normal braking.

Correct! Wrong!

In the event of low hydraulic pressure, a priority valve cuts off hydraulic power to heavy load users (emergency generator, nosewheel steering, landing gear) in order to keep the pressure for normal braking and flight controls.

An accumulator in each system helps maintain constant pressure by covering transient demands during:

Any engine failure.

Abnormal operations.

Normal operations.

Correct! Wrong!

What is the difference between the BLUE ELEC pump and the GREEN or YELLOW ELEC pump?

The BLUE ELEC pump has no automatic operation.

The BLUE ELEC pump has a higher flow.

The BLUE ELEC pump has a higher pressure.

Correct! Wrong!

With a single hydraulic system failure the flight control law is:

Alternate.

Direct.

Normal.

Correct! Wrong!

There is no possibility to transfer hydraulic fluid from one system to another.

False.

True.

Correct! Wrong!

The GREEN ELEC pump starts automatically:

After engine 1 or 2 failure .

After engine 1 failure

After engine 1 or 2 failure and Landing Gear Selector UP.

Correct! Wrong!

The hydraulic system monitoring unit (HSMU) processes:

Engine 1 and 2 hydraulic fire shut off valves closure.

Control of electric pumps, Ram Air Turbine (RAT) extension.

Fluid transfer between the three hydraulic systems.

Correct! Wrong!

During landing gear retraction, the engine 1 fails and the GREEN ELEC pump is automatically activated. How will it stop?

The GREEN ELEC pump spring loaded switch must be pressed.

The ENG 1 pump pb must be selected Off to stop both pumps.

The GREEN ELEC pump will stop automatically after 25 seconds.

Correct! Wrong!

With the GREEN hydraulic system lost, the antiskid system is:

Limited to 2000 psi brake pressure.

Lost.

Operative via the blue hydraulic system.

Correct! Wrong!

The BLUE hydraulic system includes operation of:

The slats.

The slats and flaps.

Outboard ailerons.

Correct! Wrong!

The corresponding hydraulic systems can be pressurized by:

Two engine driven pumps for the BLUE system.

Two engine driven pumps, an electric pump and a Ram Air Turbine (RAT) for the GREEN system.

Two engine driven pumps for the YELLOW system.

Correct! Wrong!

When the RAT pressurizes the green system, the aileron, elevator, and spoiler servo control operating speeds are reduced.

True.

False.

Correct! Wrong!

A pump, driven by Engine 2 pressurizes the yellow system. Flight crew can also use a hand pump to pressurize the yellow system, in order to operate the cargo doors when no electrical power is available.

True.

False.

Correct! Wrong!

After Takeoff, one engine fails prior to the Landing Gear retraction. When the Gear handle is selected 'UP':

Only the GREEN engine driven pumps are used to retract the gear.

The GREEN ELEC pump comes on automatically to assist gear retraction.

RAT will extend to assist gear retraction.

Correct! Wrong!

What is the correct statement about the RAT?

The RAT can be manually deployed by pressing the RAT MAN ON pb.

The RAT is able to pressurize the GREEN or the YELLOW systems.

The RAT will be automatically deployed in the event of low pressure in the GREEN system.

Correct! Wrong!

Leak measurement valves pb on the Maintenance panel:

May be used to isolate heavy users.

May be used by the crew to isolate flight controls during flight.

Are for maintenance purpose and ground operation only.

Correct! Wrong!

Leak measurement valves are positioned upstream of the primary flight controls. They are used for the leak measurement of each system and may only be closed on ground, by using the LEAK MEASUREMENT VALVES pb on the maintenance panel.

The Ram Air Turbine (RAT) deployment is automatically controlled by the HSMU (Hydraulic System Monitoring Unit) when:

Low level in GREEN and YELLOW hydraulic reservoirs is detected.

Low level in GREEN and BLUE hydraulic reservoirs is detected.

Both statements are correct.

Correct! Wrong!

The hydraulic reservoirs are pressurized:

From engine one or the crossbleed duct.

From the packs 1 and 2.

From the pneumatic system.

Correct! Wrong!

In flight and during approach the FLAP handle is at 2. If an engine 2 failure occurs:

The HSMU will automatically operate the YELLOW ELEC pump.

The YELLOW system is lost.

The YELLOW ELEC pump must be manually operated.

Correct! Wrong!

In case of GREEN reservoir LO LEVEL the HSMU (Hydraulic System Monitoring Unit) will:

Start the GREEN ELEC pump automatically.

Extend the RAT automatically.

Close automatically the engine 1 and 2 fire shut off valves.

Correct! Wrong!

What indicates the amber zone on the HYD page?

The temperature of the hydraulic fluid.

The maximum reservoir filling level.

The reservoir quantity warning level.

Correct! Wrong!

If the GREEN hydraulic system is lost:

The NWS remains operative.

The NWS (Nose Wheel Steering) is lost.

The NWS operates in alternate.

Correct! Wrong!

The Airbus A330 hydraulic system has:

Three hydraulic systems sharing the same hydraulic fluid.

Three hydraulic systems sharing the same pressure source.

Three fully independent systems working simultaneously.

Correct! Wrong!

The RAT deploys automatically in the event of an engine failure or a low level in the green and yellow or green and blue reservoirs.

True.

False.

Correct! Wrong!

The RAT deploys automatically in the event of both engine failure or a low level in the green and yellow or green and blue reservoirs.

Airbus A330 – Hydraulics