FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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A fire extinguisher container's charge can be determined by what method?

  1. Visual inspection

  2. Weighing the container and its contents

  3. Shaking the container

  4. Applying heat to the container

The correct answer is: Weighing the container and its contents

A) Visual inspection is not a reliable method for determining the charge of a fire extinguisher. The contents may appear full, but the pressure inside may be low. B) Weighing the container and its contents is the most accurate method for determining the charge of a fire extinguisher. It takes into account the weight of the container and the amount of extinguishing agent inside. C) Shaking the container is not a reliable method as the agent may be settled at the bottom, giving a false reading. D) Applying heat to the container is not a recommended method as it can potentially damage the container and its contents.