Pneumatic
1. With the APU running, the APU BLEED push button selected ON and the X BLEED selector to AUTO, the APU will:
· Only supply bleed air to the left side.
· Supply pneumatic air to both sides of the aircraft because the pneumatic crossbleed valve automatically opens.
· Will supply bleed air only to the left side unless the X BLEED selector is selected OPEN.
· Only supply bleed air to the right side.
2. When does the engine bleed valve automatically close
· During engine start.
· When engine fire push button is pressed.
· When APU bleed valve is opened.
· In all of the above.
3. With cross bleed selector in AUTO, engine & APU bleeds selected ON and available the
· Engine bleed valve open, cross bleed valve opens & APU bleed valve closes.
· Engine bleed valve close, cross bleed valve opens & APU bleed valve opens.
· Engine bleed valve open, cross bleed valve closes & APU bleed valve opens.
· Engine bleed valve close, cross bleed valve closes & APU bleed valve opens.
4. Failure of one BMC causes.
· Associated bleed valve closure.
· Illumination of Master caution and single chime
· The other BMC to take over the monitoring of the bleed system.
· All the above are correct.
5. Which source controls the crossbleed valve?
· Pneumatic.
· Electric.
6. The crew may directly control the following bleed valves:
· Engine, engine high pressure, APU.
· Engine, intermediate pressure, APU.
· Engine, APU, crossbleed.
· Crossbleed.
7. Bleed leak protection for the APU pneumatic duct is provided by:
· Detection loops associated with BMC #1.
· Detection loops associated with BMC #2.
· The APU BMC.
· All of the above.
8. With the loss of pneumatic system pressure, the engine bleed valve will:
· Remain in its current position.
· Assume the mid position.
· Assume the open position.
· Assume the closed position.
9. Pneumatic system operation is controlled and monitored by:
· One bleed monitoring computer.
· Two bleed valve computers.
· Two bleed monitoring computers.
10. The lavatory/galley extract fan operates:
· Only on the ground.
· Only in flight.
· Continuously when electrical power is available.
11. If bleed air is being supplied by the APU or if one pack fails; pack flow will go to what rate?
· Low.
· Medium.
· High.
12. What happens to the outflow valve when the RAM AIR switch is selected ON?
· The outflow valve opens immediately.
· The outflow valve opens if cabin differential pressure is less than 1 psi.
· Normal outflow valve control is maintained.
13. With both engines operating, an ENG BLEED pb FAULT light will illuminate when:
· The valve position differs from that of the push button.
· The X BLEED selector is selected to SHUT.
· The X BLEED selector is selected to OPEN.
· The X BLEED selector is selected to OPEN or to SHUT.
14. Air bleed from the engines is:
· Not cooled prior to being used by the systems.
· Cooled in a heat exchanger by cooling air bleed from Fan section.
· Cooled using ambient air.
· Only cooled in air conditioning part.
15. Engine bleed air temperature is controlled by:
· Engine oil.
· A pre-cooler that uses fan air.
· Conditioned air from the mixing unit.
16. If BMC1 fails BMC2 takes over all monitoring functions except:
· Engine 1 and APU leak detection.
· Overheat detection.
· Automatic crossbleed valve control.
17. Bleed air normally comes from the _______ of the engine.
· High pressure stage.
· Intermediate stage. IP
· Low pressure stage.
18. 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 P/B on the ovhd panel.
19. The pressure regulating and shutoff valve will close if _______ pressure is _______ or _______ airflow occurs
· Downstream / low / reverse
· Downstream / High / reverse
· Upstream / low / reverse
20. The crossbleed valve has two electric motors; one for the automatic mode and one for the manual mode:
· True
· False
21. The overheat detection system uses a single loop for:
· The pylons and APU.
· The wings and pylons.
· The wings and fuselage.
22. The APU BLEED FAULT light illuminates amber for an APU:
· Overheat.
· Malfunction.
· Bleed leak.
23. The AUTO position of the X BLEED selector opens the crossbleed if:
· An engine bleed valve is open.
· The APU bleed valve is open.
· When engine start is selected.
24. Recirculation fans in the air conditioning system direct filtered cabin air to which area?
· The pneumatic duct; upstream of the packs.
· The avionics compartment.
· The Mixing unit.
25. Temperature regulation for the A320 is controlled by:
· One zone controller and two pack controllers.
· Two pack controllers and the BMC’s.
· The BMC's.
26. 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.
27. When either the BLOWER or EXTRACT switches are in OVRD; air from the air conditioning system is added to ventilation air.
· True.
· False
28. How many motors are available for the outflow valve?
· 1
· 2
· 3
29. Transfer between the two cabin pressure controllers is:
· Accomplished with a switch overhead.
· Automatic after landing or in case the operating controller fails.
· Automatically at each takeoff.
30. The maximum cabin descent rate is limited in automatic to:
· 300 ft/min.
· 750 ft/min.
· 1000 ft/min.
31. The third motor (manual) in the pressurization system is activated:
· Automatically if both automatic motors fail.
· In sequence after each landing.
· When the CABIN PRESS MODE SEL switch is positioned to MAN.
32. When the cabin vertical speed exceeds _______ fpm; the vertical speed display on ECAM _______.
· 800 / flashes green
· 2800 / flashes green
· 1800 / flashes green
33. The pneumatic system supplies high pressure air for:
· Air Conditioning, water pressurization and engine starting
· Wing anti-icing.
· Hydraulic reservoir pressurization.
· All of the above.
34. High pressure air has ______ sources.
· 2
· 3
· 4
· 5
35. 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.
36. A leak detection system detects any overheating in the vicinity of hot air ducts.
· True.
· False.
37. 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 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.
38. Each bleed valve is electrically operated and controlled pneumatically by its associated BMC.
· True.
· False.
39. If a BMC detects a bleed leak:
· The crew must isolate the affected leak.
· All valves that could supply pneumatic air to the area of the bleed leak will automatically close.
· All pneumatic valves close automatically.
40. If one BMC fails, the adjacent BMC takes over the monitoring of the bleed system to issue the following ECAM warnings if necessary:
· Overpressure
· Overtemperature
· Wing leak
· All of the above.
41. ECAM BLEED page: when is the GND symbol displayed?
· Whenever the aircraft is on the ground.
· All the time.
· Only when a ground air supply is connected.
42. 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 if the system detects an air leak (except in flight).
· It closes automatically if the system detects an air leak.
43. What happens when pressure and temperature are not sufficient to supply the corresponding engine bleed valve?
· HP valve closes.
· HP valve opens, if stage closed.
· HP valve opens, IP stage remains in the same configuration.
44. When additional pneumatic air is required for anti-ice, engine starting, or air conditioning:
· Additional pneumatic air will be requested by the BMC to the FADECs or the APU.
· The crew must observe minimum N1 limits.
· Both are correct.
45. When selected, APU bleed air:
· Will supply bleed air only if the ENG BLEED pb's are selected OFF.
· Has priority over engine bleed air.
· Will supply bleed air only if the X BLEED selector is selected OPEN.
· Does not have priority over engine bleed air.
46. APU bleed air supplies the pneumatic system if the APU speed is above _____:
· 80%
· 85%
· 92%
· 95%
47. A check valve near the crossbleed duct protects the APU when bleed air comes from another source:
· True.
· False.
48. Following an ENGINE 1 BLEED FAULT, why can you only use one pack if Wing Anti Ice (WAI) is on?
· Only one user can be supplied via the X BLEED duct.
· Only ENG BLEED system cannot supply 2 packs and WAI.
· If you use WAI, the X BLEED valve is automatically closed. Therefore, pack 1 will no longer be supplied.
· One engine bleed system can either supply both packs or one pack plus WAI.
49. Temperature regulation is achieved by the precooler which regulates and limits the temperature at:
· 150°C
· 85°C
· 60°C
· 200°C
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