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.

When engine start is selected.

The APU bleed valve is open.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

The overheat detection system uses a single loop for:

The pylons and APU.

The wings and pylons.

The wings and fuselage.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

Automatic cross-bleed valve control.

Engine 1 and APU leak detection.

Overheat detection.

Correct! Wrong!

When selected ON, the APU bleed air will:

Have priority over engine bleed air.

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

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

Correct! Wrong!

In normal operation which bleed air source has priority?

Engine Bleed.

RAM Air.

APU.

Ground Air.

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.

The engine spools up automatically.

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

False.

True.

Correct! Wrong!

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

APU bleed leak.

APU overheat or bleed leak.

APU overheat.

Correct! Wrong!

An ECAM caution will also appear.

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

200 deg.C.

150 deg.C.

90 deg.C.

175 deg.C.

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!

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!

Temperature regulation is controlled by:

Two pack controllers and the BMCs (Bleed Monitoring Computers)

The two BMCs.

One zone controller and two pack controllers.

Correct! Wrong!

Air bleed from the engines is:

Not cooled prior to being used by the systems.

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

Only cooled in air conditioning part.

Correct! Wrong!

During Normal operation, when would the HP valve open?

At low thrust settings.

When IP pressure is insufficient for the demand.

At TOGA power.

With pilot intervention on the overhead panel.

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!

Bleed air normally comes from the _____ of the engine.

High pressure stage.

Intermediate stage.

Low pressure stage.

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!

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!

The lavatory/galley extract fan operates:

Only on the ground.

Only in flight.

Continuously when electrical power is available.

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.

The BMC detects an overheat or low pressure.

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!

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!

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!

Should both channels fail in a zone controller:

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

Temperature optimization and the backup mode are lost.

The pack is not affected.

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.

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!

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

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

It closes automatically if the system detects an air leak.

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

Correct! Wrong!

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

True.

False.

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!

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

Assume the closed position.

Assume the open position.

Remain in its current position.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

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

The overheat detection system uses a single loop for:

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

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

When selected ON, the APU bleed air will:

In normal operation which bleed air source has priority?

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

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

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

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

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

Temperature regulation is controlled by:

Air bleed from the engines is:

During Normal operation, when would the HP valve open?

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.

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

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:

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

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

If a Bleed Monitoring Computer (BMC) fails:

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

Should both channels fail in a zone controller:

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

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.

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

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

Engine bleed air temperature is controlled by:

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.