A320 Sys APU , Doors,Oxigen

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  • 1/24 Questions

    The cargo doors are power by :

    • The Yellow Hydraulic  system .
    • The Yellow hydraulic system before engine start and the green hydraulic system after engine start.
    • The blue electric pump.
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About This Quiz

This quiz assesses knowledge of the Airbus A320's Auxiliary Power Unit (APU), door mechanisms, and oxygen systems. It covers the functionality of APU controls, emergency procedures, and power management, essential for pilots and aircraft maintenance professionals.

Aircraft Systems Quizzes & Trivia

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  • 2. 

    When the APU MASTER SW is selected ON :

    • The APU computer automatically starts the APU.

    • The APU computer automatically completes a self test , opens the air intake flap and suplies fuel pressure .

    • Connects the APU generator to the aircraft electrical system .

    Correct Answer
    A. The APU computer automatically completes a self test , opens the air intake flap and suplies fuel pressure .
    Explanation
    When the APU MASTER SW is selected ON, the APU computer automatically starts the APU and completes a self-test. It also opens the air intake flap and supplies fuel pressure. Additionally, it connects the APU generator to the aircraft electrical system.

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  • 3. 

    What does illumination of the while slide armed light represent on the main cabin door ?

    • This indicates the the slide has properly inflate and is safe for use .

    • This indicates that the slide is armed and the slide will inflate if the door is operated from inside the aircraft.

    • This indicates that the main cabin door has not been properly closed.

    Correct Answer
    A. This indicates that the slide is armed and the slide will inflate if the door is operated from inside the aircraft.
    Explanation
    The illumination of the white slide armed light on the main cabin door indicates that the slide is armed and will inflate if the door is operated from inside the aircraft. This is an important safety feature as it alerts the crew and passengers that the slide is ready for use in case of an emergency evacuation.

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  • 4. 

    The APU may be started up too what altitud  ?

    • The APU can be started at any altitude using normal aircraft power .

    • The APU can be started up to 35,000 feet using only the aircraft batteries.

    • The APU can be started up to 30,000 feet using only the aircraft batteries.

    Correct Answer
    A. The APU can be started at any altitude using normal aircraft power .
    Explanation
    The correct answer is that the APU can be started at any altitude using normal aircraft power. This means that regardless of the altitude the aircraft is at, the APU can be started up using the regular power source of the aircraft. There is no restriction on the altitude for starting the APU as long as the normal aircraft power is available.

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  • 5. 

    At approximately what cabin altitud should the passenger oxygen mask drop ?

    • 15,000 feet .

    • 10,000 feet

    • 14,000 feet .

    Correct Answer
    A. 14,000 feet .
    Explanation
    The passenger oxygen masks should drop at approximately 14,000 feet cabin altitude.

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  • 6. 

    What is indicated by a missing green thermal plug during an exterior inspection ?

    • This is normal indication , the green thermal plug only appears if the oxygen cylinder is low .

    • An oxygen system overpressure or thermal discharge

    • An external fire discharge has been activated .

    Correct Answer
    A. An oxygen system overpressure or thermal discharge
    Explanation
    A missing green thermal plug during an exterior inspection indicates an oxygen system overpressure or thermal discharge. This means that there might be an issue with the oxygen cylinder, such as it being overpressurized or experiencing a thermal discharge. It is important to address this situation promptly to ensure the safety of the oxygen system and prevent any potential hazards.

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  • 7. 

    What is the main difference between the crew and the passenger oxigen system ?

    • There is not difference , both are served by oxygen cylinders

    • Crew is supplied from an oxygen cylinder , passenger are supplied by chemical .

    • Both crew and passengers are supplied with oxygen from chemical oxygen generators.

    Correct Answer
    A. Crew is supplied from an oxygen cylinder , passenger are supplied by chemical .
    Explanation
    The main difference between the crew and the passenger oxygen system is the source of oxygen supply. The crew is supplied with oxygen from an oxygen cylinder, while the passengers are supplied with oxygen from a chemical oxygen generator.

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  • 8. 

    What does the passenger oxygen flow start ?

    • When the mask is pulled toward the seat .

    • When the oxygen doors open .

    • When cabin altitude exceeds 14,000 feet .

    Correct Answer
    A. When the mask is pulled toward the seat .
    Explanation
    The passenger oxygen flow starts when the mask is pulled toward the seat. This action triggers the release of oxygen from the oxygen supply system, allowing passengers to breathe in case of an emergency or a decrease in cabin pressure.

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  • 9. 

    The APU system page will appear on the ECAM

    • Automatically whenever the APU is started and AC power is available.

    • When selected by the crew .

    • Both A and B are correct .

    Correct Answer
    A. Both A and B are correct .
    Explanation
    Both options A and B are correct because the APU system page will appear on the ECAM automatically whenever the APU is started and AC power is available. Additionally, the APU system page can also be manually selected by the crew.

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  • 10. 

    Can the flight compartment sliding windows be used emergency exit ?

    • No , They are not approved emergency exits.

    • Yes , in the cockpit coat closet is a rope ladder that can be used in such an event.

    • Yes , there are escape ropes mounted above each window behind an access panel.

    Correct Answer
    A. Yes , there are escape ropes mounted above each window behind an access panel.
    Explanation
    The correct answer is "Yes, there are escape ropes mounted above each window behind an access panel." This answer states that there are escape ropes available above each window, which can be used as emergency exits. This suggests that the flight compartment sliding windows can indeed be used as emergency exits in case of an event requiring evacuation.

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  • 11. 

    What is the purpose of the CREW SUPPLY push button ?

    • When selected ON , it supplies oxygen to the third and fourth occupant´s mask in the cockpit

    • When selected ON it allows the flow of low pressure oxygen to the crew´s masks

    • In case of low cylinder pressure it allows the crew to tap into the passenger oxygen system .

    Correct Answer
    A. When selected ON it allows the flow of low pressure oxygen to the crew´s masks
    Explanation
    The purpose of the CREW SUPPLY push button is to allow the flow of low pressure oxygen to the crew's masks when it is selected ON. This ensures that the crew members have a continuous supply of oxygen in case of any emergency or low cylinder pressure.

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  • 12. 

    What does illumination of the red cabin pressure light represent on the main cabin door ?

    • This indicates that the aircraft cabin is still pressurized and the cabin door should not be opened.

    • This indicates that the evacuation slide armed .

    • Both A and B are correct.

    Correct Answer
    A. This indicates that the aircraft cabin is still pressurized and the cabin door should not be opened.
    Explanation
    The correct answer is that the illumination of the red cabin pressure light represents that the aircraft cabin is still pressurized and the cabin door should not be opened. This is an important safety measure to ensure that passengers do not open the door while the cabin is still pressurized, as it could cause harm to both the passengers and the aircraft.

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  • 13. 

    On which ECAM page could be the flight crew check the exact pressure of the oxygen cylinder ?

    • PRESS page

    • DOORS page

    • COND page

    Correct Answer
    A. DOORS page
    Explanation
    The flight crew can check the exact pressure of the oxygen cylinder on the DOORS page of the ECAM. This page provides information related to the aircraft's doors, including the status of the oxygen cylinder. By accessing this page, the crew can easily monitor the pressure level of the cylinder to ensure that it is within the required range for safe operation.

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  • 14. 

    The APU START push button , when selected on , will :

    • Connected the APU generator to the aircraft electrical system.

    • Open the air intake flap and supply fuel pressure.

    • Start the APU if the APU MASTER SW was previously selected on.

    Correct Answer
    A. Start the APU if the APU MASTER SW was previously selected on.
    Explanation
    When the APU START push button is selected, it will start the APU if the APU MASTER SW (switch) was previously selected on. This means that the APU can only be started if the APU MASTER switch is in the on position. The APU START push button does not directly connect the APU generator to the aircraft electrical system or open the air intake flap and supply fuel pressure. It is solely responsible for starting the APU if the APU MASTER switch is already on.

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  • 15. 

    The APU MASTER SW light will illuminate :

    • When the APU low oil pressure is detected.

    • When an automatic shutdown of the APU occurs .

    • If the batteries are selected OFF while the APU is operating .

    Correct Answer
    A. When an automatic shutdown of the APU occurs .
    Explanation
    The APU MASTER SW light will illuminate when an automatic shutdown of the APU occurs. This means that if there is a situation where the APU needs to be shut down automatically, such as due to a malfunction or safety concern, the APU MASTER SW light will turn on to indicate this. It serves as a warning to the pilot or operator that the APU has been shut down automatically and needs attention or further investigation.

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  • 16. 

    What is the function of the APU GEN push button located on the overhead electrical panel ?

    • When selected OFF ,the APU generator is de_ energized .

    • It is normally left in the lights out position.

    • Both A and B are correct.

    Correct Answer
    A. Both A and B are correct.
    Explanation
    The APU GEN push button on the overhead electrical panel is used to control the APU generator. When selected OFF, it de-energizes the APU generator. It is normally left in the lights out position, indicating that it is not in use. Both statements A and B are correct, as they provide accurate information about the function of the APU GEN push button.

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  • 17. 

    What happens to the cockpit door with electrical power failure ? 

    • It operates normally on HOT BAT bus

    • It automatically locks 

    • It automatically unlocks 

    Correct Answer
    A. It automatically unlocks 
    Explanation
    When there is an electrical power failure, the cockpit door automatically unlocks. This is a safety feature designed to ensure that the flight crew can easily exit the cockpit in case of an emergency, even when there is no power. By automatically unlocking the door, it allows for quick and easy access to the cockpit, promoting the safety and security of the flight crew and passengers.

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  • 18. 

    Illumination of the SYS ON light is an indication that :

    • All of the passengers mask have deployed .

    • The crew must depress the MASK MAN ON pb in order to deploy the masks.

    • Electrical power has been sent to deploy the mask ,either manually or automatically.

    Correct Answer
    A. Electrical power has been sent to deploy the mask ,either manually or automatically.
    Explanation
    The illumination of the SYS ON light indicates that electrical power has been sent to deploy the masks, either manually or automatically. This means that the system is functioning properly and the masks are ready for use in case of an emergency.

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  • 19. 

    How many cabin entrance , overwing emergency exits and cargo doors are on the A 320 ?

    • Four cabin , two overwing and two cargo

    • Four cabin , four overwing ,and two cargo .

    • Two cabin , four overwing and three cargo.

    Correct Answer
    A. Four cabin , four overwing ,and two cargo .
    Explanation
    The correct answer is "Four cabin, four overwing, and two cargo." This means that the A 320 aircraft has four entrances for passengers to enter the cabin, four emergency exits located over the wings, and two cargo doors for loading and unloading cargo.

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  • 20. 

    With the engines off , if the AVAIL light is illuminated on both , the APU START push button and the EXT PWR push button , what is the source of electrical power for the aircraft busses ?

    • External power .

    • The APU 

    • It is not posible to determine without checking the ECAM.

    Correct Answer
    A. The APU 
    Explanation
    When both the APU START push button and the EXT PWR push button are illuminated, it indicates that the aircraft is receiving electrical power from the external power source. The APU is not running in this case, as the engines are off. Therefore, the correct answer is External power.

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  • 21. 

    What will depressing the guarded MASK MAN ON pb accomplish ?

    • A signal is sent to the chemical oxygen generators to start the flow of oxygen to the mask

    • It manually sends a signal to open the oxigen mask doors.

    • Both A and B are correct.

    Correct Answer
    A. It manually sends a signal to open the oxigen mask doors.
    Explanation
    Depressing the guarded MASK MAN ON pb will manually send a signal to open the oxygen mask doors. This means that by pressing the button, the person is initiating the process of opening the doors of the oxygen mask, allowing the flow of oxygen to start. This action is done manually and does not involve any automatic signal sent to the chemical oxygen generators. Therefore, option B is the correct answer.

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  • 22. 

    To start the APU the :

    • BAT 1 and 2 push buttons must be selected ON.

    • BAT 1 and 2 push buttons do not need to be selected ON if external power is available 

    • Both A and B are correct.

    Correct Answer
    A. BAT 1 and 2 push buttons must be selected ON.
    Explanation
    The correct answer is that the BAT 1 and 2 push buttons must be selected ON in order to start the APU. This means that the batteries need to be turned on to provide power for the APU startup process. The presence or availability of external power does not eliminate the need to turn on the batteries. Both options A and B are not correct because only option A is the correct answer.

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  • 23. 

    How is determined that the cockpit sliding window is closed and locked ?

    • The red ring bellow the released button should not be in view .

    • The red ring bellow the release button should be in view .

    • The locking pin was placed in the forward position when the window was closed .

    Correct Answer
    A. The red ring bellow the released button should not be in view .
    Explanation
    To determine if the cockpit sliding window is closed and locked, the red ring below the release button should not be in view. This indicates that the window is securely closed and locked.

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  • 24. 

    Approximately how long are the passenger oxygen generators able to produce oxygen ?

    • 15 minutes 

    • 30 minutes

    • 20 minutes

    Correct Answer
    A. 20 minutes
    Explanation
    Passenger oxygen generators are designed to produce oxygen for a specific duration in case of an emergency. The correct answer is 20 minutes, indicating that the passenger oxygen generators can supply oxygen for approximately 20 minutes. This duration is crucial as it provides enough time for passengers to breathe safely while the aircraft descends to a lower altitude or makes an emergency landing.

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Quiz Review Timeline (Updated): Aug 1, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Aug 01, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 12, 2020
    Quiz Created by
    GECAVA
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