Airbus A320 – Pneumatic - SmartCockpit - Airline training guides, Aviation, Operations, Safety

Recirculation fans in the air conditioning system direct filtered cabin air to which area?

The avionics compartment.

The Mixing unit.

The pneumatic duct that is upstream of the packs.

Correct! Wrong!

In normal operation which bleed air source has priority?

Engine Bleed.

Ground Air.

RAM Air.

APU.

Correct! Wrong!

During Normal operation, when would the HP valve open?

When IP pressure is insufficient for the demand.

At TOGA power.

At low thrust settings.

With pilot intervention on the overhead panel.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

Intermediate stage.

Low pressure stage.

High pressure stage.

Correct! Wrong!

The APU BLEED pb-sw controls the APU bleed valve. When the flight crew selects ON with the pushbutton, APU bleed air supplies the pneumatic system, if the APU speed is _____. This opens the crossbleed valve and closes the engine bleed automatically.

Above 98% but less than 100%.

Above 95 %.

Normal (above 90% RPM).

Correct! Wrong!

When engine and wing anti-ice are in use, and a BMC detects a bleed leak:

The wing and engine anti-ice on the associated side will be lost.

Only the engine anti-ice on the associated side will be lost.

The wing anti-ice on the associated side will be lost, and the engine anti-ice on the associated side will continue to function.

Correct! Wrong!

Air is normally bled from the intermediate pressure stage (IP) of engine’s high-pressure (HP) compressor to minimize fuel penalty.

False.

True.

Correct! Wrong!

Engine Bleed Indications – The Precooler outlet temperature is normally in green. It becomes amber, if:

The BMC detects an overheat.

The BMC detects an overheat or low temperature.

The BMC detects an overheat or low pressure.

Correct! Wrong!

The crossbleed valve has three electric motors: one for the automatic mode, one for the manual mode and one for the degraded mode.

True.

False.

Correct! Wrong!

The crossbleed valve has two electric motors: one for the automatic mode and one for the manual mode.

Temperature regulation is achieved by the precooler which regulates and limits the temperature at:

150 deg.C.

200 deg.C.

175 deg.C.

90 deg.C.

Correct! Wrong!

Should both channels fail in a zone controller:

The pack is not affected.

Temperature optimization and the backup mode are lost.

Temperature optimization is still available for that zone from another controller.

Correct! Wrong!

A leak detection system detects any overheating in the vicinity of hot air ducts.

True.

False.

Correct! Wrong!

A check valve near the crossbleed duct protects the APU, when bleed air comes from another source.

True.

False.

Correct! Wrong!

In automatic mode, the crossbleed valve opens when the system is using APU bleed air.

It closes if the system detects an air leak (except during engine start).

It closes automatically if the system detects an air leak.

It closes if the system detects an air leak (except in flight).

Correct! Wrong!

The pressure regulating and shutoff valve will close if ___ pressure is _ or ___ airflow occurs.

Downstream / High / reverse.

Downstream / low / reverse.

Upstream / low / reverse.

Correct! Wrong!

When selected ON, the APU bleed air will:

Have priority over engine bleed air.

Supply bleed air if the ENG BLEED pbs are selected OFF.

Supply bleed air only if the X BLEED selector is selected OPEN.

Correct! Wrong!

For what condition will the APU BLEED FAULT light illuminate amber?

APU bleed leak.

APU overheat.

APU overheat or bleed leak.

Correct! Wrong!

An ECAM caution will also appear.

Each bleed valve is electrically operated and controlled by its associated BMC (Bleed Monitoring Computer).

True.

False.

Correct! Wrong!

Each bleed valve is pneumatically operated and controlled electrically by its associated BMC.

If a Bleed Monitoring Computer (BMC) fails:

The remaining BMC will automatically assume most of the failed BMC’s functions.

All systems associated with the failed BMC also fail.

The associated bleed valves close.

Correct! Wrong!

If bleed air is being supplied by the APU or if one pack fails, pack flow will go to _____ rate.

Medium.

Low.

High.

Correct! Wrong!

If APU Bleed is ON and the crossbleed valve is shut, the Engine bleed valve 2 remains open.

False.

True.

Correct! Wrong!

With the loss of pneumatic system pressure, the engine bleed valve will:

Assume the open position.

Remain in its current position.

Assume the closed position.

Correct! Wrong!

Temperature regulation is controlled by:

Two pack controllers and the BMCs (Bleed Monitoring Computers)

One zone controller and two pack controllers.

The two BMCs.

Correct! Wrong!

The pneumatic system supplies high-pressure air for air conditioning, engine starting, wing anti-icing, water pressurization and hydraulic reservoir pressurization.

False.

True.

Correct! Wrong!

Air bleed from the engines is:

Not cooled prior to being used by the systems.

Only cooled in air conditioning part.

Cooled in a heat exchanger by cooling air bleed from the Fan section.

Correct! Wrong!

What happens when pressure and temperature are not sufficient to supply the corresponding engine bleed valve?

HP valve closes.

HP valve closes, IP stage remains in the same configuration.

HP valve opens, IP stage remains in the same configuration.

Correct! Wrong!

BMC2 takes over all monitoring functions if BMC1 fails except for:

Overheat detection.

Overpressure detection.

APU and Engine 1 leak detection.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only on the ground.

Continuously when electrical power is available.

Only in flight.

Correct! Wrong!

If BMC1 (Bleed Monitoring Computer) fails BMC2 takes over all monitoring functions except:

Automatic cross-bleed valve control.

Engine 1 and APU leak detection.

Overheat detection.

Correct! Wrong!

Engine bleed air temperature is controlled by:

Conditioned air from the Bleed Monitoring Computers (BMC1 and BMC2).

Conditioned air from the mixing unit.

A pre-cooler that uses fan air.

Correct! Wrong!

In flight if the air pressure is insufficient even with the HP valve open:

The engine spools up automatically.

Push the High Pressure pb on the overhead panel.

Engine power has to be increased by the pilot.

Correct! Wrong!

The overheat detection system uses a single loop for:

The wings and fuselage.

The wings and pylons.

The pylons and APU.

Correct! Wrong!

The AUTO position of the X BLEED selector opens the crossbleed if:

The APU bleed valve is open.

When engine start is selected.

An engine bleed valve is open.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

Recirculation fans in the air conditioning system direct filtered cabin air to which area?

In normal operation which bleed air source has priority?

During Normal operation, when would the HP valve open?

Bleed air normally comes from the _____ of the engine.

The APU BLEED pb-sw controls the APU bleed valve. When the flight crew selects ON with the pushbutton, APU bleed air supplies the pneumatic system, if the APU speed is _____. This opens the crossbleed valve and closes the engine bleed automatically.

When engine and wing anti-ice are in use, and a BMC detects a bleed leak:

Air is normally bled from the intermediate pressure stage (IP) of engine’s high-pressure (HP) compressor to minimize fuel penalty.

Engine Bleed Indications – The Precooler outlet temperature is normally in green. It becomes amber, if:

The crossbleed valve has three electric motors: one for the automatic mode, one for the manual mode and one for the degraded mode.

Temperature regulation is achieved by the precooler which regulates and limits the temperature at:

Should both channels fail in a zone controller:

A leak detection system detects any overheating in the vicinity of hot air ducts.

A check valve near the crossbleed duct protects the APU, when bleed air comes from another source.

In automatic mode, the crossbleed valve opens when the system is using APU bleed air.

The pressure regulating and shutoff valve will close if _____ pressure is _____ or _____ airflow occurs.

When selected ON, the APU bleed air will:

For what condition will the APU BLEED FAULT light illuminate amber?

Each bleed valve is electrically operated and controlled by its associated BMC (Bleed Monitoring Computer).

If a Bleed Monitoring Computer (BMC) fails:

If bleed air is being supplied by the APU or if one pack fails, pack flow will go to _____ rate.

If APU Bleed is ON and the crossbleed valve is shut, the Engine bleed valve 2 remains open.

With the loss of pneumatic system pressure, the engine bleed valve will:

Temperature regulation is controlled by:

The pneumatic system supplies high-pressure air for air conditioning, engine starting, wing anti-icing, water pressurization and hydraulic reservoir pressurization.

Air bleed from the engines is:

What happens when pressure and temperature are not sufficient to supply the corresponding engine bleed valve?

BMC2 takes over all monitoring functions if BMC1 fails except for:

The lavatory/galley extract fan operates:

If BMC1 (Bleed Monitoring Computer) fails BMC2 takes over all monitoring functions except:

Engine bleed air temperature is controlled by:

In flight if the air pressure is insufficient even with the HP valve open:

The overheat detection system uses a single loop for:

The AUTO position of the X BLEED selector opens the crossbleed if:

The pressure regulating and shutoff valve will close if ___ pressure is _ or ___ airflow occurs.