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

When selected ON, the APU bleed air will:

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

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

Have priority over engine bleed air.

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 pressure.

The BMC detects an overheat or low temperature.

Correct! Wrong!

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

True.

False.

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!

The overheat detection system uses a single loop for:

The wings and pylons.

The wings and fuselage.

The pylons and APU.

Correct! Wrong!

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

APU overheat or bleed leak.

APU overheat.

APU 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).

False.

True.

Correct! Wrong!

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

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!

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

Remain in its current position.

Assume the closed position.

Assume the open position.

Correct! Wrong!

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

Upstream / low / reverse.

Downstream / High / reverse.

Downstream / low / reverse.

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!

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.

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

APU and Engine 1 leak detection.

Overheat detection.

Overpressure detection.

Correct! Wrong!

The lavatory/galley extract fan operates:

Continuously when electrical power is available.

Only on the ground.

Only in flight.

Correct! Wrong!

Temperature regulation is controlled by:

The two BMCs.

One zone controller and two pack controllers.

Two pack controllers and the BMCs (Bleed Monitoring Computers)

Correct! Wrong!

If a Bleed Monitoring Computer (BMC) fails:

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

The associated bleed valves close.

All systems associated with the failed BMC also fail.

Correct! Wrong!

Air bleed from the engines is:

Only cooled in air conditioning part.

Not cooled prior to being used by the systems.

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

Correct! Wrong!

Engine bleed air temperature is controlled by:

A pre-cooler that uses fan air.

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

Conditioned air from the mixing unit.

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!

In normal operation which bleed air source has priority?

Ground Air.

RAM Air.

Engine Bleed.

APU.

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.

Normal (above 90% RPM).

Above 98% but less than 100%.

Above 95 %.

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

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

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

High pressure stage.

Intermediate stage.

Low pressure stage.

Correct! Wrong!

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

True.

False.

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.

Medium.

Low.

High.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

The Mixing unit.

The avionics compartment.

The pneumatic duct that is upstream of the packs.

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!

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

Overheat detection.

Automatic cross-bleed valve control.

Engine 1 and APU leak detection.

Correct! Wrong!

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

150 deg.C.

90 deg.C.

175 deg.C.

200 deg.C.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

When engine start is selected.

An engine bleed valve is open.

The APU bleed valve is open.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

When selected ON, the APU bleed air will:

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

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

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

The overheat detection system uses a single loop for:

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).

Should both channels fail in a zone controller:

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

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

During Normal operation, when would the HP valve open?

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

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

The lavatory/galley extract fan operates:

Temperature regulation is controlled by:

If a Bleed Monitoring Computer (BMC) fails:

Air bleed from the engines is:

Engine bleed air temperature is controlled by:

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

In normal operation which bleed air source has priority?

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:

Bleed air normally comes from the _____ of the engine.

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

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.

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

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

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

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

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

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

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.