Question Bank - Airbus A320

Pneumatic

XVIII of XVIII

Q 01: Engine bleed air temperature is controlled by:

A: Engine oil.

B: A pre-cooler that uses fan air.

C: Conditioned air from the mixing unit.

Q 02: If BMC1 fails BMC2 takes over all monitoring functions except:

A: Engine 1 and APU leak detection.

B: Overheat detection.

C: Automatic crossbleed valve control.

Q 03: Bleed air normally comes from the _______ of the engine.

A: High pressure stage.

B: Intermediate stage.

C: Low pressure stage.

Q 04: In flight if the air pressure is insufficient even with the HP valve open:

A: The engine spools up automatically.

B: Engine power has to be increased by the pilot.

C: Push the High Pressure P/B on the ovhd panel.

Q 05: The pressure regulating and shutoff valve will close if _______ pressure is _______ or _______ airflow occurs

A: Downstream / low / reverse

B: Downstream / High / reverse

C: Upstream / low / reverse

Q 06: The crossbleed valve has two electric motors; one for the automatic mode and one for the manual mode:

A: True

B: False

Q 07: The overheat detection system uses a single loop for:

A: The pylons and APU.

B: The wings and pylons.

C: The wings and fuselage.

Q 08: The APU BLEED FAULT light illuminates amber for an APU:

A: Overheat.

B: Malfunction.

C: Bleed leak.

Q 09: The AUTO position of the X BLEED selector opens the crossbleed if:

A: An engine bleed valve is open.

B: The APU bleed valve is open.

C: When engine start is selected.

Q 10: Recirculation fans in the air conditioning system direct filtered cabin air to which area?

A: The pneumatic duct; upstream of the packs.

B: The avionics compartment.

C: The Mixing unit.

Q 11: Temperature regulation for the A320 is controlled by:

A: One zone controller and two pack controllers.

B: Two pack controllers and the BMC’s.

C: The BMC’s

Q 12: Should both channels fail in a zone controller:

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

B: Temperature optimization and the backup mode are lost.

C: The pack is not affected.

Q 13: The lavatory/galley extract fan operates:

A: Only on the ground.

B: Only in flight.

C: Continuously when electrical power is available.

Q 14: If bleed air is being supplied by the APU or if one pack fails; pack flow will go to what rate?

A: Low.

B: Medium.

C: High.

Q 15: What happens to the outflow valve when the RAM AIR switch is selected ON?

A: The outflow valve opens immediately.

B: The outflow valve opens if cabin differential pressure is less than 1 psi.

C: Normal outflow valve control is maintained.

Q 16: When either the BLOWER or EXTRACT switches are in OVRD; air from the air conditioning system is added to ventilation air.

A: True.

B: False

Q 17: How many motors are available for the outflow valve?

A: 1

B: 2

C: 3

Q 18: Transfer between the two cabin pressure controllers is:

A: Accomplished with a switch overhead.

B: Automatic after landing or in case the operating controller fails.

C: Automatically at each takeoff.

Q 19: The maximum cabin descent rate is limited in automatic to:

A: 300 ft/min.

B: 750 ft/min.

C: 1000 ft/min.

Q 20: The third motor (manual) in the pressurization system is activated:

A: Automatically if both automatic motors fail.

B: In sequence after each landing.

C: When the CABIN PRESS MODE SEL switch is positioned to MAN.

Q 21: When the cabin vertical speed exceeds _______ fpm; the vertical speed display on ECAM _______.

A: 800 / flashes green

B: 2800 / flashes green

C: 1800 / flashes green

Q 22: The pneumatic system supplies high pressure air for:

A: Air Conditioning, water pressurization and engine starting

B: Wing anti-icing.

C: Hydraulic reservoir pressurization.

D: All of the above.

Q 23: High pressure air has ______ sources.

A: 2

B: 3

C: 4

D: 5

(Note: Three Sources of HP air are -Engine bleed systems, APU load compressor and HP ground connection.)

Q 24: With both engines operating, an ENG BLEED pb FAULT light will illuminate when:

A: The valve position differs from that of the push button.

B: The X BLEED selector is selected to SHUT.

C: The X BLEED selector is selected to OPEN.

D: The X BLEED selector is selected to OPEN or to SHUT.

Q 25: Air bleed from the engines is:

A: Not cooled prior to being used by the systems.

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

C: Cooled using ambient air.

D: Only cooled in air conditioning part.

Q 26: If a Bleed Monitoring Computer (BMC) fails:

A: All systems associated with the failed BMC also fail.

B: The associated bleed valves close.

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

Q 27: A leak detection system detects any overheating in the vicinity of hot air ducts.

A: True.

B: False.

Q 28: When engine and wing anti-ice are in use, and a BMC detects a bleed leak:

A: Only the engine anti-ice on the associated side will be lost.

B: The wing and engine anti-ice on the associated side will be lost.

C: The wing anti-ice on the associated side will be lost, and the engine anti-ice on the associated side will continue to function.

Q 29: Each bleed valve is electrically operated and controlled pneumatically by its associated BMC.

A: True.

B: False.

(Note - Each bleed valve is pneumatically operated and controlled electrically by its associated BMC.)

Q 30: If a BMC detects a bleed leak:

A: The crew must isolate the affected leak.

B: All valves that could supply pneumatic air to the area of the bleed leak will automatically close.

C: All pneumatic valves close automatically.

Q 31: If one BMC fails, the adjacent BMC takes over the monitoring of the bleed system to issue the following ECAM warnings if necessary:

A: Overpressure

B: Overtemperature

C: Wing leak

D: All of the above.

Q 32: Bleed leak protection for the APU pneumatic duct is provided by:

A: Detection loops associated with BMC #1.

B: Detection loops associated with BMC #2.

C: The APU BMC.

D: All of the above.

Q 33: With the loss of pneumatic system pressure, the engine bleed valve will:

A: Remain in its current position.

B: Assume the mid position.

C: Assume the open position.

D: Assume the closed position.

Q 34: Pneumatic system operation is controlled and monitored by:

A: One bleed monitoring computer.

B: Two bleed valve computers.

C: Two bleed monitoring computers.

Q 35: ECAM BLEED page: when is the GND symbol displayed?

A: Whenever the aircraft is on the ground.

B: All the time.

C: Only when a ground air supply is connected.

Q 36: In automatic mode, the crossbleed valve opens when the system is using APU bleed air.

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

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

C: It closes automatically if the system detects an air leak.

Q 37: What happens when pressure and temperature are not sufficient to supply the corresponding engine bleed valve?

A: HP valve closes.

B: HP valve opens, if stage closed.

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

Q 38: When additional pneumatic air is required for anti-ice, engine starting, or air conditioning:

A: Additional pneumatic air will be requested by the BMC to the FADECs or the APU.

B: The crew must observe minimum N1 limits.

C: Both are correct.

Q 39: When selected, APU bleed air:

A: Will supply bleed air only if the ENG BLEED pb’s are selected OFF.

B: Has priority over engine bleed air.

C: Will supply bleed air only if the X BLEED selector is selected OPEN.

D: Does not have priority over engine bleed air.

Q 40: With the APU running, the APU BLEED push button selected ON and the X BLEED selector to AUTO, the APU will:

A: Only supply bleed air to the left side.

B: Supply pneumatic air to both sides of the aircraft because the pneumatic crossbleed valve automatically opens.

C: Will supply bleed air only to the left side unless the X BLEED selector is selected OPEN.

D: Only supply bleed air to the right side.

Q 41: Which source controls the crossbleed valve?

A: Pneumatic.

B: Electric.

Q 42: The crew may directly control the following bleed valves:

A: Engine, engine high pressure, APU.

B: Engine, intermediate pressure, APU.

C: Engine, APU, crossbleed.

D: Crossbleed.

Q 43: APU bleed air supplies the pneumatic system if the APU speed is above _____:

A: 80%

B: 85%

C: 92%

D: 95%

Q 44: A check valve near the crossbleed duct protects the APU when bleed air comes from another source:

A: True.

B: False.

Q 45: Following an ENGINE 1 BLEED FAULT, why can you only use one pack if Wing Anti Ice (WAI) is on?

A: Only one user can be supplied via the X BLEED duct.

B: Only ENG BLEED system cannot supply 2 packs and WAI.

C: If you use WAI, the X BLEED valve is automatically closed. Therefore, pack 1 will no longer be supplied.

D: One engine bleed system can either supply both packs or one pack plus WAI.

Q 46: Temperature regulation is achieved by the precooler which regulates and limits the temperature at:

A: 150°C

B: 85°C

C: 60°C

D: 200°C

HAPPY LANDINGS!