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

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

An engine bleed valve is open.

The APU bleed valve is open.

When engine start is selected.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only on the ground.

Only in flight.

Continuously when electrical power is available.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

High pressure stage.

Low pressure stage.

Intermediate stage.

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!

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!

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

APU overheat or bleed leak.

APU bleed leak.

APU overheat.

Correct! Wrong!

An ECAM caution will also appear.

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!

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

False.

True.

Correct! Wrong!

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

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

Engine power has to be increased by the pilot.

Push the High Pressure pb on the overhead panel.

The engine spools up automatically.

Correct! Wrong!

Should both channels fail in a zone controller:

Temperature optimization and the backup mode are lost.

The pack is not affected.

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

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!

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

150 deg.C.

175 deg.C.

200 deg.C.

90 deg.C.

Correct! Wrong!

Temperature regulation is controlled by:

The two BMCs.

Two pack controllers and the BMCs (Bleed Monitoring Computers)

One zone controller and two pack controllers.

Correct! Wrong!

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

False.

True.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

Low.

High.

Medium.

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!

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

APU and Engine 1 leak detection.

Overheat detection.

Overpressure detection.

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.

False.

True.

Correct! Wrong!

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

In normal operation which bleed air source has priority?

Engine Bleed.

Ground Air.

RAM Air.

APU.

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!

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

True.

False.

Correct! Wrong!

During Normal operation, when would the HP valve open?

At low thrust settings.

At TOGA power.

With pilot intervention on the overhead panel.

When IP pressure is insufficient for the demand.

Correct! Wrong!

Engine bleed air temperature is controlled by:

Conditioned air from the mixing unit.

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

A pre-cooler that uses fan air.

Correct! Wrong!

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

Remain in its current position.

Assume the open position.

Assume the closed position.

Correct! Wrong!

When selected ON, the APU bleed air will:

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

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

Have priority over engine bleed air.

Correct! Wrong!

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

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

HP valve closes.

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

Correct! Wrong!

If a Bleed Monitoring Computer (BMC) fails:

All systems associated with the failed BMC also fail.

The associated bleed valves close.

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

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

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

The wing and 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!

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

Overheat detection.

Engine 1 and APU leak detection.

Automatic cross-bleed valve control.

Correct! Wrong!

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

It closes automatically if the system detects an air leak.

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

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

Correct! Wrong!

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

The Mixing unit.

The pneumatic duct that is upstream of the packs.

The avionics compartment.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

The lavatory/galley extract fan operates:

Bleed air normally comes from the _____ of the engine.

Air bleed from the engines is:

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

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

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

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

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

Should both channels fail in a zone controller:

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.

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

Temperature regulation is controlled by:

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

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

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

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

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

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

In normal operation which bleed air source has priority?

The overheat detection system uses a single loop for:

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

During Normal operation, when would the HP valve open?

Engine bleed air temperature is controlled by:

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

When selected ON, the APU bleed air will:

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

If a Bleed Monitoring Computer (BMC) fails:

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

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

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

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

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

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