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

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!

Bleed air normally comes from the _____ of the engine.

Intermediate stage.

High pressure stage.

Low pressure stage.

Correct! Wrong!

The overheat detection system uses a single loop for:

The wings and fuselage.

The pylons and APU.

The wings and pylons.

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!

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!

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

HP valve closes.

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

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

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!

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

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.

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

Correct! Wrong!

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 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!

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

175 deg.C.

200 deg.C.

150 deg.C.

90 deg.C.

Correct! Wrong!

In normal operation which bleed air source has priority?

Ground Air.

APU.

RAM Air.

Engine Bleed.

Correct! Wrong!

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

True.

False.

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!

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

False.

True.

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!

Should both channels fail in a zone controller:

Temperature optimization and the backup mode are lost.

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

The pack is not affected.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only in flight.

Only on the ground.

Continuously when electrical power is available.

Correct! Wrong!

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

High.

Medium.

Low.

Correct! Wrong!

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

Push the High Pressure pb on the overhead panel.

Engine power has to be increased by the pilot.

The engine spools up automatically.

Correct! Wrong!

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

Downstream / High / reverse.

Upstream / low / reverse.

Downstream / low / reverse.

Correct! Wrong!

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

The BMC detects an overheat or low temperature.

The BMC detects an overheat or low pressure.

The BMC detects an overheat.

Correct! Wrong!

During Normal operation, when would the HP valve open?

When IP pressure is insufficient for the demand.

At low thrust settings.

At TOGA power.

With pilot intervention on the overhead panel.

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.

False.

True.

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%.

Normal (above 90% RPM).

Above 95 %.

Correct! Wrong!

If a Bleed Monitoring Computer (BMC) fails:

The associated bleed valves close.

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

All systems associated with the failed BMC also fail.

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.

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.

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!

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!

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

The APU bleed valve is open.

An engine bleed valve is open.

When engine start is selected.

Correct! Wrong!

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

APU and Engine 1 leak detection.

Overpressure detection.

Overheat detection.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

When selected ON, the APU bleed air will:

Bleed air normally comes from the _____ of the engine.

The overheat detection system uses a single loop for:

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

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

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

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

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

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

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:

In normal operation which bleed air source has priority?

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

Engine bleed air temperature is controlled by:

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

Air bleed from the engines is:

Should both channels fail in a zone controller:

The lavatory/galley extract fan operates:

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

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

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

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

During Normal operation, when would the HP valve open?

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.

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.

If a Bleed Monitoring Computer (BMC) fails:

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

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

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

Temperature regulation is controlled by:

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

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

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