FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Prepare for the FAA AMT Airframe Exam with our comprehensive quiz. This resource offers multiple-choice questions designed to enhance your knowledge and understanding of aviation maintenance concepts.

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The altitude controller maintains cabin altitude by modulation of the?

  1. Inflow valve

  2. Outflow valve

  3. Pressure relief valve

  4. Emergency vent

The correct answer is: Outflow valve

The altitude controller manages cabin altitude by modulating the outflow valve, which adjusts the rate of air flow out of the cabin. While the outflow valve is the primary mechanism used to control cabin altitude, the other options play different roles in maintaining a safe and comfortable cabin environment. The inflow valve regulates air intake into the pressurization system, the pressure relief valve releases excess pressure in the event of an over-pressurization, and the emergency vent provides a backup escape route for air in case of emergencies. However, these valves do not directly control cabin altitude like the outflow valve does. Therefore, B is the best answer.

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