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

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

Upstream / low / reverse.

Downstream / low / reverse.

Downstream / High / reverse.

Correct! Wrong!

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

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

HP valve closes.

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

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!

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 air temperature is controlled by:

Conditioned air from the mixing unit.

A pre-cooler that uses fan air.

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

Correct! Wrong!

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

The BMC detects an overheat or low pressure.

The BMC detects an overheat or low temperature.

The BMC detects an overheat.

Correct! Wrong!

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

Overheat detection.

APU and Engine 1 leak detection.

Overpressure detection.

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.

Normal (above 90% RPM).

Above 98% but less than 100%.

Above 95 %.

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!

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

False.

True.

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.

During Normal operation, when would the HP valve open?

At TOGA power.

When IP pressure is insufficient for the demand.

With pilot intervention on the overhead panel.

At low thrust settings.

Correct! Wrong!

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

The pneumatic duct that is upstream of the packs.

The avionics compartment.

The Mixing unit.

Correct! Wrong!

The overheat detection system uses a single loop for:

The pylons and APU.

The wings and fuselage.

The wings and pylons.

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.

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

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

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

Low pressure stage.

High pressure stage.

Intermediate stage.

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.

Air bleed from the engines is:

Only cooled in air conditioning part.

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

Not cooled prior to being used by the systems.

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 during engine start).

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

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!

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 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!

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!

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!

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!

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

Engine power has to be increased by the pilot.

The engine spools up automatically.

Push the High Pressure pb on the overhead panel.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

False.

True.

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.

In normal operation which bleed air source has priority?

Engine Bleed.

APU.

RAM Air.

Ground Air.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only on the ground.

Continuously when electrical power is available.

Only in flight.

Correct! Wrong!

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!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

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

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

When selected ON, the APU bleed air will:

Engine bleed air temperature is controlled by:

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:

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.

Temperature regulation is controlled by:

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

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

During Normal operation, when would the HP valve open?

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

The overheat detection system uses a single loop for:

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.

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

Air bleed from the engines is:

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

Should both channels fail in a zone controller:

If a Bleed Monitoring Computer (BMC) fails:

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

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

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

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

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

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

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

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

In normal operation which bleed air source has priority?

The lavatory/galley extract fan operates:

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

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