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

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!

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!

Should both channels fail in a zone controller:

The pack is not affected.

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

Temperature optimization and the backup mode are lost.

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.

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

APU and Engine 1 leak detection.

Overheat detection.

Overpressure detection.

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!

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

Assume the open position.

Assume the closed position.

Remain in its current position.

Correct! Wrong!

In normal operation which bleed air source has priority?

RAM Air.

APU.

Ground Air.

Engine Bleed.

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!

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 overheat detection system uses a single loop for:

The wings and pylons.

The pylons and APU.

The wings and fuselage.

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!

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

False.

True.

Correct! Wrong!

During Normal operation, when would the HP valve open?

At TOGA power.

With pilot intervention on the overhead panel.

When IP pressure is insufficient for the demand.

At low thrust settings.

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!

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

The avionics compartment.

The pneumatic duct that is upstream of the packs.

The Mixing unit.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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!

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!

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!

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:

150 deg.C.

175 deg.C.

200 deg.C.

90 deg.C.

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!

Bleed air normally comes from the _____ of the engine.

Low pressure stage.

Intermediate stage.

High pressure stage.

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.

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

An engine bleed valve is open.

When engine start is selected.

The APU bleed valve is open.

Correct! Wrong!

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

True.

False.

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 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.

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!

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!

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

Low.

Medium.

High.

Correct! Wrong!

The lavatory/galley extract fan operates:

Continuously when electrical power is available.

Only in flight.

Only on the ground.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

If a Bleed Monitoring Computer (BMC) fails:

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

Should both channels fail in a zone controller:

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

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

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

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

In normal operation which bleed air source has priority?

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

Temperature regulation is controlled by:

The overheat detection system uses a single loop for:

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

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

During Normal operation, when would the HP valve open?

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?

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

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

Engine bleed air temperature is controlled by:

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 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:

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

Bleed air normally comes from the _____ of the engine.

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

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

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

In flight if the air pressure is insufficient even with 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.

Air bleed from the engines is:

When selected ON, the APU bleed air will:

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

The lavatory/galley extract fan operates:

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