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

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

APU overheat.

APU overheat or bleed leak.

APU bleed leak.

Correct! Wrong!

An ECAM caution will also appear.

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!

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!

Air bleed from the engines is:

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

Only cooled in air conditioning part.

Not cooled prior to being used by the systems.

Correct! Wrong!

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

90 deg.C.

175 deg.C.

200 deg.C.

150 deg.C.

Correct! Wrong!

When selected ON, the APU bleed air will:

Have priority over engine bleed air.

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

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

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 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:

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.

The wing and engine anti-ice on the associated side will be 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!

Should both channels fail in a zone controller:

Temperature optimization and the backup mode are lost.

The pack is not affected.

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

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%.

Normal (above 90% RPM).

Above 95 %.

Correct! Wrong!

The lavatory/galley extract fan operates:

Only on the ground.

Continuously when electrical power is available.

Only in flight.

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.

In normal operation which bleed air source has priority?

Ground Air.

Engine Bleed.

APU.

RAM Air.

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!

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

False.

True.

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!

During Normal operation, when would the HP valve open?

At TOGA power.

With pilot intervention on the overhead panel.

At low thrust settings.

When IP pressure is insufficient for the demand.

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!

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.

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

True.

False.

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!

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 temperature.

The BMC detects an overheat or low pressure.

Correct! Wrong!

Bleed air normally comes from the _____ of the engine.

Low pressure stage.

High pressure stage.

Intermediate stage.

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!

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!

Engine bleed air temperature is controlled by:

A pre-cooler that uses fan air.

Conditioned air from the mixing unit.

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

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!

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!

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!

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

The engine spools up automatically.

Engine power has to be increased by the pilot.

Push the High Pressure pb on the overhead panel.

Correct! Wrong!

If a Bleed Monitoring Computer (BMC) fails:

The associated bleed valves close.

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

All systems associated with the failed BMC also fail.

Correct! Wrong!

Airbus A320 – Pneumatic

Airbus A320 – Pneumatic

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

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

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

Air bleed from the engines is:

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

When selected ON, the APU bleed air will:

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.

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

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

Should both channels fail in a zone controller:

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 lavatory/galley extract fan operates:

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

In normal operation which bleed air source has priority?

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

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:

During Normal operation, when would the HP valve open?

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

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

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

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

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

Bleed air normally comes from the _____ of the engine.

Temperature regulation is controlled by:

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

Engine bleed air temperature is controlled by:

The overheat detection system uses a single loop for:

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

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

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

If a Bleed Monitoring Computer (BMC) fails:

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