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

The overheat detection system uses a single loop for:

The pylons and APU.

The wings and pylons.

The wings and fuselage.

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!

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

175 deg.C.

200 deg.C.

90 deg.C.

150 deg.C.

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!

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!

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

Medium.

High.

Low.

Correct! Wrong!

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

The Mixing unit.

The avionics compartment.

The pneumatic duct that is upstream of the packs.

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!

During Normal operation, when would the HP valve open?

When IP pressure is insufficient for the demand.

With pilot intervention on the overhead panel.

At low thrust settings.

At TOGA power.

Correct! Wrong!

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

False.

True.

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 pressure.

The BMC detects an overheat or low temperature.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only in flight.

Continuously when electrical power is available.

Only on the ground.

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.

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 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!

In normal operation which bleed air source has priority?

Engine Bleed.

APU.

RAM Air.

Ground Air.

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!

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!

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!

Engine bleed air temperature is controlled by:

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

Conditioned air from the mixing unit.

A pre-cooler that uses fan air.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

High pressure stage.

Intermediate stage.

Low pressure stage.

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.

Normal (above 90% RPM).

Above 95 %.

Above 98% but less than 100%.

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:

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!

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.

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

Downstream / High / reverse.

Downstream / low / reverse.

Upstream / low / reverse.

Correct! Wrong!

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

True.

False.

Correct! Wrong!

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

Overpressure detection.

Overheat detection.

APU and Engine 1 leak detection.

Correct! Wrong!

Air bleed from the engines is:

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

Not cooled prior to being used by the systems.

Only cooled in air conditioning part.

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.

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!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

The overheat detection system uses a single loop for:

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

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

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:

Should both channels fail in a zone controller:

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

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

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?

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:

The lavatory/galley extract fan operates:

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

Temperature regulation is controlled by:

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

In normal operation which bleed air source has priority?

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

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

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

Engine bleed air temperature is controlled by:

Bleed air normally comes from the _____ of the engine.

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.

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:

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

When selected ON, the APU bleed air will:

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

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

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

Air bleed from the engines is:

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

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

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