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

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!

Engine bleed air temperature is controlled by:

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

A pre-cooler that uses fan air.

Conditioned air from the mixing unit.

Correct! Wrong!

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

Assume the open position.

Remain in its current position.

Assume the closed position.

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!

If a Bleed Monitoring Computer (BMC) fails:

All systems associated with the failed BMC also fail.

The associated bleed valves close.

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

Correct! Wrong!

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

Overheat detection.

Automatic cross-bleed valve control.

Engine 1 and APU leak detection.

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!

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!

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!

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

Downstream / low / reverse.

Downstream / High / reverse.

Upstream / low / reverse.

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!

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!

The lavatory/galley extract fan operates:

Only on the ground.

Only in flight.

Continuously when electrical power is available.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

Intermediate stage.

High pressure stage.

Low pressure stage.

Correct! Wrong!

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

True.

False.

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!

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!

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!

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!

In normal operation which bleed air source has priority?

APU.

RAM Air.

Ground Air.

Engine Bleed.

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 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.

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!

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

False.

True.

Correct! Wrong!

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

APU overheat.

APU bleed leak.

APU overheat or bleed leak.

Correct! Wrong!

An ECAM caution will also appear.

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 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.

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!

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.

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

True.

False.

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!

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!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

Engine bleed air temperature is controlled by:

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

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

If a Bleed Monitoring Computer (BMC) fails:

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

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

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

Air bleed from the engines is:

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

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

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

The lavatory/galley extract fan operates:

Bleed air normally comes from the _____ of the engine.

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

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

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

When selected ON, the APU bleed air will:

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 normal operation which bleed air source has priority?

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

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:

During Normal operation, when would the HP valve open?

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

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

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

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

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

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

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

Temperature regulation is controlled by:

Should both channels fail in a zone controller:

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