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!

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.

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.

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 95 %.

Above 98% but less than 100%.

Correct! Wrong!

During Normal operation, when would the HP valve open?

When IP pressure is insufficient for the demand.

At TOGA power.

With pilot intervention on the overhead panel.

At low thrust settings.

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 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 lavatory/galley extract fan operates:

Only in flight.

Only on the ground.

Continuously when electrical power is available.

Correct! Wrong!

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

90 deg.C.

150 deg.C.

175 deg.C.

200 deg.C.

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 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 in flight).

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

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 temperature.

The BMC detects an overheat or low pressure.

The BMC detects an overheat.

Correct! Wrong!

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

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

HP valve closes.

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

Correct! Wrong!

In normal operation which bleed air source has priority?

Ground Air.

APU.

Engine Bleed.

RAM Air.

Correct! Wrong!

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

False.

True.

Correct! Wrong!

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

False.

True.

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!

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!

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!

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

Low.

High.

Medium.

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!

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

Downstream / High / reverse.

Downstream / low / reverse.

Upstream / low / reverse.

Correct! Wrong!

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

Engine 1 and APU leak detection.

Automatic cross-bleed valve control.

Overheat detection.

Correct! Wrong!

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

The Mixing unit.

The pneumatic duct that is upstream of the packs.

The avionics compartment.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

High pressure stage.

Low pressure stage.

Intermediate stage.

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!

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

Overheat detection.

Overpressure detection.

APU and Engine 1 leak detection.

Correct! Wrong!

If a Bleed Monitoring Computer (BMC) fails:

All systems associated with the failed BMC also fail.

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

The associated bleed valves close.

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!

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

True.

False.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

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

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

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.

During Normal operation, when would the HP valve open?

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

Engine bleed air temperature is controlled by:

The lavatory/galley extract fan operates:

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

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.

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:

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

In normal operation which bleed air source has priority?

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

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

The overheat detection system uses a single loop for:

Should both channels fail in a zone controller:

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

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

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

Air bleed from the engines is:

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

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

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

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

Bleed air normally comes from the _____ of the engine.

When selected ON, the APU bleed air will:

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

If a Bleed Monitoring Computer (BMC) fails:

Temperature regulation is controlled by:

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

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