Practice Test GeeksA&P - Aircraft and Powerplant Certification Practice Test
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Airframe Systems & Components Flashcards

7 cards from real A&P practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Airframe Systems & Components flashcards as text

  1. Which component directly regulates cabin pressure in a pressurized aircraft?

    Answer: Outflow valve

    The outflow valve modulates how much air leaves the cabin to hold the scheduled pressure.

  2. Cabin differential pressure is the difference between:

    Answer: Cabin pressure and ambient outside pressure

    Differential pressure is cabin pressure minus outside static pressure, limited by structural design.

  3. Aviator's breathing oxygen must be low in moisture to prevent:

    Answer: Freezing of valves and regulators at altitude

    Moisture in the oxygen can freeze in cold, high-altitude regulators and block flow.

  4. A chemical oxygen generator produces oxygen by:

    Answer: Burning a sodium chlorate core

    Sodium chlorate decomposes when ignited, giving off oxygen.

  5. A thermocouple fire detection system responds to:

    Answer: Rate of temperature rise

    The thermocouple's reference junction heats slowly, so a fast rise generates a voltage to the warning circuit.

  6. A yellow disc missing from a fire extinguisher bottle's discharge port indicates:

    Answer: Thermal overpressure discharge

    The yellow disc ruptures when heat overpressurizes the bottle; green indicates a normal discharge.

  7. Spilled lead-acid battery electrolyte should be neutralized with:

    Answer: Sodium bicarbonate solution

    Baking soda neutralizes the acid; boric acid or vinegar is for nickel-cadmium alkaline electrolyte.

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