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!

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!

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

False.

True.

Correct! Wrong!

In normal operation which bleed air source has priority?

APU.

Ground Air.

RAM Air.

Engine Bleed.

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 Mixing unit.

The avionics compartment.

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 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!

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 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!

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 overheat detection system uses a single loop for:

The wings and pylons.

The pylons and APU.

The wings and fuselage.

Correct! Wrong!

During Normal operation, when would the HP valve open?

At TOGA power.

At low thrust settings.

When IP pressure is insufficient for the demand.

With pilot intervention on the overhead panel.

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!

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

Automatic cross-bleed valve control.

Overheat detection.

Engine 1 and APU leak detection.

Correct! Wrong!

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

Overheat detection.

Overpressure detection.

APU and Engine 1 leak detection.

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!

The lavatory/galley extract fan operates:

Continuously when electrical power is available.

Only on the ground.

Only in flight.

Correct! Wrong!

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

False.

True.

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 during engine start).

It closes automatically if the system detects an air leak.

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

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!

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!

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.

The BMC detects an overheat or low temperature.

Correct! Wrong!

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!

Bleed air normally comes from the _____ of the engine.

Low pressure stage.

Intermediate stage.

High pressure stage.

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!

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

True.

False.

Correct! Wrong!

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

Assume the closed position.

Remain in its current 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!

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!

Temperature regulation is controlled by:

One zone controller and two pack controllers.

Two pack controllers and the BMCs (Bleed Monitoring Computers)

The two BMCs.

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!

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

High.

Low.

Medium.

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.

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

When selected ON, the APU bleed air will:

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

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

In normal operation which bleed air source has priority?

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

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

Air bleed from the engines is:

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

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.

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

The overheat detection system uses a single loop for:

During Normal operation, when would the HP valve open?

Should both channels fail in a zone controller:

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

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.

The lavatory/galley extract fan operates:

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

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

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

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

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

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

Bleed air normally comes from the _____ of the engine.

Engine bleed air temperature is controlled by:

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

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:

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

Temperature regulation is controlled by:

If a Bleed Monitoring Computer (BMC) fails:

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

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

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