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Airbus A320 · Pneumatics 题库（58 题）

Airbus A320 机型「Pneumatics」相关知识共 58 道题。想练习或模拟考试，请到 题库 · 模拟考试。
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1.With the loss of pneumatic system pressure, the engine bleed valve will:

  1. Remain in its current position.
  2. Assume the open position.
  3. Assume the closed position. ✓
正确答案：Assume the closed position.　·　A320　·　来源 smartcockpit.com

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

  1. Only the engine anti-ice on the associated side will be lost.
  2. The wing and engine anti-ice on the associated side will be lost.
  3. The wing anti-ice on the associated side will be lost, and the engine anti-ice on the associated side will continue to function. ✓
正确答案：The wing anti-ice on the associated side will be lost, and the engine anti-ice on the associated side will continue to function.　·　A320　·　来源 smartcockpit.com

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

  1. True. ✓
  2. False.
正确答案：True.　·　A320　·　来源 smartcockpit.com

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

  1. True.
  2. False. ✓
正确答案：False.　·　A320　·　来源 smartcockpit.com

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

  1. APU overheat.
  2. APU overheat or bleed leak.
  3. APU bleed leak. ✓
正确答案：APU bleed leak.　·　A320　·　来源 smartcockpit.com

6.The overheat detection system uses a single loop for:

  1. The pylons and APU. ✓
  2. The wings and pylons.
  3. The wings and fuselage.
正确答案：The pylons and APU.　·　A320　·　来源 smartcockpit.com

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

  1. APU and Engine 1 leak detection. ✓
  2. Overheat detection.
  3. Overpressure detection.
正确答案：APU and Engine 1 leak detection.　·　A320　·　来源 smartcockpit.com

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

  1. Downstream / low / reverse.
  2. Downstream / High / reverse.
  3. Upstream / low / reverse. ✓
正确答案：Upstream / low / reverse.　·　A320　·　来源 smartcockpit.com

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

  1. Low.
  2. Medium.
  3. High. ✓
正确答案：High.　·　A320　·　来源 smartcockpit.com

10.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.

  1. Normal (above 90% RPM).
  2. Above 95 %. ✓
  3. Above 98% but less than 100%.
正确答案：Above 95 %.　·　A320　·　来源 smartcockpit.com

11.Air bleed from the engines is:

  1. Not cooled prior to being used by the systems.
  2. Cooled in a heat exchanger by cooling air bleed from the Fan section. ✓
  3. Only cooled in air conditioning part.
正确答案：Cooled in a heat exchanger by cooling air bleed from the Fan section.　·　A320　·　来源 smartcockpit.com

12.Bleed air normally comes from the _____ of the engine.

  1. High pressure stage.
  2. Intermediate stage. ✓
  3. Low pressure stage.
正确答案：Intermediate stage.　·　A320　·　来源 smartcockpit.com

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

  1. True.
  2. False. ✓
正确答案：False.　·　A320　·　来源 smartcockpit.com

14.Temperature regulation is controlled by:

  1. One zone controller and two pack controllers. ✓
  2. Two pack controllers and the BMCs (Bleed Monitoring Computers)
  3. The two BMCs.
正确答案：One zone controller and two pack controllers.　·　A320　·　来源 smartcockpit.com

15.Engine bleed air temperature is controlled by:

  1. Conditioned air from the Bleed Monitoring Computers (BMC1 and BMC2).
  2. A pre-cooler that uses fan air. ✓
  3. Conditioned air from the mixing unit.
正确答案：A pre-cooler that uses fan air.　·　A320　·　来源 smartcockpit.com

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

  1. It closes if the system detects an air leak (except during engine start). ✓
  2. It closes if the system detects an air leak (except in flight).
  3. It closes automatically if the system detects an air leak.
正确答案：It closes if the system detects an air leak (except during engine start).　·　A320　·　来源 smartcockpit.com

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

  1. True. ✓
  2. False.
正确答案：True.　·　A320　·　来源 smartcockpit.com

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

  1. The BMC detects an overheat.
  2. The BMC detects an overheat or low temperature.
  3. The BMC detects an overheat or low pressure. ✓
正确答案：The BMC detects an overheat or low pressure.　·　A320　·　来源 smartcockpit.com

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

  1. The engine spools up automatically. ✓
  2. Engine power has to be increased by the pilot.
  3. Push the High Pressure pb on the overhead panel.
正确答案：The engine spools up automatically.　·　A320　·　来源 smartcockpit.com

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

  1. An engine bleed valve is open.
  2. The APU bleed valve is open. ✓
  3. When engine start is selected.
正确答案：The APU bleed valve is open.　·　A320　·　来源 smartcockpit.com

21.During Normal operation, when would the HP valve open?

  1. When IP pressure is insufficient for the demand. ✓
  2. At TOGA power.
  3. With pilot intervention on the overhead panel.
  4. At low thrust settings.
正确答案：When IP pressure is insufficient for the demand.　·　A320　·　来源 smartcockpit.com

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

  1. 90 deg.C.
  2. 150 deg.C.
  3. 175 deg.C.
  4. 200 deg.C. ✓
正确答案：200 deg.C.　·　A320　·　来源 smartcockpit.com

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

  1. Engine 1 and APU leak detection. ✓
  2. Overheat detection.
  3. Automatic cross-bleed valve control.
正确答案：Engine 1 and APU leak detection.　·　A320　·　来源 smartcockpit.com

24.In normal operation which bleed air source has priority?

  1. Ground Air.
  2. RAM Air.
  3. Engine Bleed.
  4. APU. ✓
正确答案：APU.　·　A320　·　来源 smartcockpit.com

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

  1. True. ✓
  2. False.
正确答案：True.　·　A320　·　来源 smartcockpit.com

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

  1. HP valve closes.
  2. HP valve closes, IP stage remains in the same configuration.
  3. HP valve opens, IP stage remains in the same configuration. ✓
正确答案：HP valve opens, IP stage remains in the same configuration.　·　A320　·　来源 smartcockpit.com

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

  1. The pneumatic duct that is upstream of the packs.
  2. The avionics compartment.
  3. The Mixing unit. ✓
正确答案：The Mixing unit.　·　A320　·　来源 smartcockpit.com

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

  1. True. ✓
  2. False.
正确答案：True.　·　A320　·　来源 smartcockpit.com

29.If a Bleed Monitoring Computer (BMC) fails:

  1. All systems associated with the failed BMC also fail.
  2. The associated bleed valves close.
  3. The remaining BMC will automatically assume most of the failed BMC’s functions. ✓
正确答案：The remaining BMC will automatically assume most of the failed BMC’s functions.　·　A320　·　来源 smartcockpit.com

30.Should both channels fail in a zone controller:

  1. Temperature optimization is still available for that zone from another controller.
  2. Temperature optimization and the backup mode are lost. ✓
  3. The pack is not affected.
正确答案：Temperature optimization and the backup mode are lost.　·　A320　·　来源 smartcockpit.com

31.When selected ON, the APU bleed air will:

  1. Supply bleed air if the ENG BLEED pbs are selected OFF.
  2. Have priority over engine bleed air. ✓
  3. Supply bleed air only if the X BLEED selector is selected OPEN.
正确答案：Have priority over engine bleed air.　·　A320　·　来源 smartcockpit.com

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

  1. True. ✓
  2. False.
正确答案：True.　·　A320　·　来源 smartcockpit.com

33.The lavatory/galley extract fan operates:

  1. Only on the ground.
  2. Only in flight.
  3. Continuously when electrical power is available. ✓
正确答案：Continuously when electrical power is available.　·　A320　·　来源 smartcockpit.com

34.How many pneumatic safety valves prevent cabin pressure from exceeding limits?

  1. One
  2. Two ✓
  3. Three
  4. Four
正确答案：Two　·　A320　·　来源 Chair Flight A320 Question Bank

35.Which system controls and monitors the operation of the pneumatic system?

  1. The Flight Warning Computer FWC
  2. Two Bleed Monitoring Computers BMC1 and BMC2 ✓
  3. One Bleed Control Computer BCC
  4. Two Cabin Pressurization Computers CPC1 and CPC 2
正确答案：Two Bleed Monitoring Computers BMC1 and BMC2　·　A320　·　来源 Chair Flight A320 Question Bank

36.The aircraft has two similar engine bleed air systems. Each system is designed to:

  1. Select the compressor stage to use as a source of air
  2. Regulate the bleed air temperature
  3. Regulate the bleed air pressure
  4. All answers are correct ✓
正确答案：All answers are correct　·　A320　·　来源 Chair Flight A320 Question Bank

37.How is the Crossbleed Valve controlled?

  1. Pneumatically
  2. Hydraulically
  3. Electrically ✓
  4. All answers are correct
正确答案：Electrically　·　A320　·　来源 Chair Flight A320 Question Bank

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

  1. Overpressure
  2. Wing leak
  3. Overtemperature
  4. All answers are correct ✓
正确答案：All answers are correct　·　A320　·　来源 Chair Flight A320 Question Bank

39.A leak detection system in the pneumatic circuit detects any overheating in the vicinity of:

  1. The hot air ducts ✓
  2. The engine anti-icing piccolo tubes
  3. The precooler downstream of the bleed valve
  4. The hot air valves
正确答案：The hot air ducts　·　A320　·　来源 Chair Flight A320 Question Bank

40.A FAULT light in the ENG 2 BLEED pb indicates, among others:

  1. The ENG FIRE pushbutton has not been popped out
  2. There is an under pressure upstream of the bleed valve
  3. The bleed valve is not closed with APU bleed ON ✓
  4. The engine anti-icing is not receiving enough bleed air in idle conditions
正确答案：The bleed valve is not closed with APU bleed ON　·　A320　·　来源 Chair Flight A320 Question Bank

41.What are the possible selections of the crossbleed valve selector on the overhead AIR COND panel?

  1. ON, OFF
  2. AUTO, X-FEED, CLOSE
  3. OPEN, CLOSE
  4. SHUT, AUTO, OPEN ✓
正确答案：SHUT, AUTO, OPEN　·　A320　·　来源 Chair Flight A320 Question Bank

42.The following is true about the bleed supply source:

  1. An intermediate pressure valve can cut off bleed air from the HP port
  2. A non return valve at the HP port protects the compressor against a reverse flow from the IP port
  3. A non return valve at the IP port protects the compressor against a reverse flow from the HP port ✓
  4. A check valve can cut off bleed air from the the compressor air extract port
正确答案：A non return valve at the IP port protects the compressor against a reverse flow from the HP port　·　A320　·　来源 Chair Flight A320 Question Bank

43.The bleed valve function is to act as:

  1. A shut off and pressure regulating valve ✓
  2. A reverse flow protection valve when the APU is not running
  3. A temperature and pressure regulating valve
  4. A temperature regulating valve
正确答案：A shut off and pressure regulating valve　·　A320　·　来源 Chair Flight A320 Question Bank

44.What is the purpose of the crossbleed valve?

  1. It enable both the left and right bleed systems to equalize the air pressure in the ducts before the bleed air is distributed to the users
  2. Its sole purpose is to permit a crossbleed engine start and to isolate both bleed systems in case of smoke
  3. It permits the interconnection or isolation of both bleed systems upstream of the bleed valves and OPVs
  4. It permits the interconnection or isolation of both bleed systems downstream of the precoolers ✓
正确答案：It permits the interconnection or isolation of both bleed systems downstream of the precoolers　·　A320　·　来源 Chair Flight A320 Question Bank

45.The following symbols are displayed on the ECAM BLEED system page:

  1. The IP and HP ports, the engine bleed valves, the precoolers air inlet pressure and outlet temperature values, the APU BLEED valve when the APU is running ✓
  2. The IPVs, the high pressure ground indication,always displayed on ground even if the ground unit is not connected
  3. The OPVs, the crossbleed valve, the pack valves
  4. The non return valves, the APU bleed valve, the pack compressor outlet temperature
正确答案：The IP and HP ports, the engine bleed valves, the precoolers air inlet pressure and outlet temperature values, the APU BLEED valve when the APU is running　·　A320　·　来源 Chair Flight A320 Question Bank

46.During normal operation, what happens in the pneumatic system as the engine power is increased for take off?

  1. The pressure delivered from the IP stages is sufficient and the HP valves are automatically closed ✓
  2. The HP valves open fully to permit sufficient bleed supply in case of pack failure
  3. The crossbleed valve closes if APU is being used
  4. The precooler fan valve is turned off until lift off
正确答案：The pressure delivered from the IP stages is sufficient and the HP valves are automatically closed　·　A320　·　来源 Chair Flight A320 Question Bank

47.Each bleed valve is normally:

  1. Electrically operated and pneumatically controlled by the opposite BMC
  2. Pneumatically operated and electrically controlled by its associated BMC ✓
  3. Pneumatically operated and electrically controlled by the opposite BMC
  4. Electrically operated and pneumatically controlled by its associated BMC
正确答案：Pneumatically operated and electrically controlled by its associated BMC　·　A320　·　来源 Chair Flight A320 Question Bank

48.A leak in the bleed system is detected by:

  1. Overpressure detection loops
  2. Overheating detection loops ✓
  3. Smoke detection loops
  4. Overspeed detection loops
正确答案：Overheating detection loops　·　A320　·　来源 Chair Flight A320 Question Bank

49.The pneumatic system supplies high-pressure air for:

  1. Air conditioning, engine starting, wing anti-icing, water pressurization and hydraulic reservoir pressurization ✓
  2. Only for engine starting and Wing anti-icing
  3. Only for air conditioning and Water pressurization
  4. Only for engine starting, wing anti-icing and hydraulic reservoir pressurization
正确答案：Air conditioning, engine starting, wing anti-icing, water pressurization and hydraulic reservoir pressurization　·　A320　·　来源 Chair Flight A320 Question Bank

50.The ENG BLEED LEAK caution comes ON at:

  1. A temperature of > 165°
  2. A temperature of > 204° ✓
  3. A temperature of > 185°
  4. A temperature of > 234°
正确答案：A temperature of > 204°　·　A320　·　来源 Chair Flight A320 Question Bank

51.Following an ENGINE1 BLEED FAULT why can you only use one pack if Wing Anti Ice is on?

  1. Only one user can be supplied via the X BLEED duct.
  2. If you use wing A/I, the X BLEED valve is automatically closed. Therefore, pack 1 will no longer be supplied.
  3. One ENG BLEED system cannot supply 2 packs and wing A/I. ✓
正确答案：One ENG BLEED system cannot supply 2 packs and wing A/I.　·　A320　·　来源 Chair Flight A320 Question Bank

52.Engine bleed indications on the precooler inlet pressure is normally green. The light becomes amber if under _________ or if overpressure detected by the BMC:

  1. 3 psi
  2. 6 psi
  3. 4 psi ✓
  4. 2 psi
正确答案：4 psi　·　A320　·　来源 Chair Flight A320 Question Bank

53.The ADIRS includes ____ ADMs (Air Data Modules) which convert pneumatic data from PITOT and STAT probes into numerical data for the ADIRUs.

  1. Four
  2. ) Eight ✓
正确答案：) Eight　·　A320　·　来源 Chair Flight A320 Question Bank

54.WING ANTI-ICE: In flight, hot air from the pneumatic system heats:

  1. The three outboard slats (3-4-5) of each wing ✓
  2. All the slats of each wing
  3. The three inboard slats (1-2-3) of each wing
  4. All the slats of each wing and leading edges of flaps if extended
正确答案：The three outboard slats (3-4-5) of each wing　·　A320　·　来源 Chair Flight A320 Question Bank

55.An independent air bleed from the high pressure compressor protects each engine nacelle from ice. Air is supplied through a two-position (open and closed) valve that the flight crew controls with:

  1. One pushbutton.
  2. Two pushbuttons ✓
  3. The valves are controlled automatically
正确答案：Two pushbuttons　·　A320　·　来源 Chair Flight A320 Question Bank

56.Wing anti-ice switch is pushed 'ON', indications on the ECAM BLEED PAGE are:

  1. There is no indication on ECAM BLEED PAGE for wing anti-ice system.
  2. ANTI-ICE appears in white on the ECAM BLEED PAGE when the wing anti-ice pushbutton is depressed. ✓
  3. A magenta triangle appears on the ECAM BLEED PAGE when the wing anti-ice pushbutton is depressed.
正确答案：ANTI-ICE appears in white on the ECAM BLEED PAGE when the wing anti-ice pushbutton is depressed.　·　A320　·　来源 Chair Flight A320 Question Bank

57.When the cooling demand in one zone cannot be satisfied, if the bleed pressure is too low, the zone controller sends a pressure demand signal to both Engine Interface Units (EIU) to

  1. Decrease the minimum idle and to raise the bleed pressure
  2. Increase the minimum idle and to raise the bleed pressure ✓
  3. The zone controllers cannot send signals to the EIU to alter any engine parameter
  4. All answers are correct
正确答案：Increase the minimum idle and to raise the bleed pressure　·　A320　·　来源 Chair Flight A320 Question Bank

58.Which statement is correct? Two independent pneumatic safety valves prevent cabin pressure from going…

  1. Too high (8.6 psi above ambient)
  2. Too low (1 psi below ambient)
  3. Too high (8,6 psi above ambient) or too low (1 psi below ambient) ✓
  4. Too high (9 psi above ambient) or too low (1 psi below ambient)
正确答案：Too high (8,6 psi above ambient) or too low (1 psi below ambient)　·　A320　·　来源 Chair Flight A320 Question Bank
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