FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Cylinders used to transport and store acetylene contain:

  1. Oxygen

  2. Nitrogen

  3. Acetone

  4. Carbon dioxide

The correct answer is: Acetone

Cylinders used to transport and store acetylene contain acetone. Acetone is used as a solvent to dissolve acetylene gas to stabilize its composition and prevent decomposition due to shock or jarring. The use of acetone in acetylene cylinders helps ensure the safety of handling and transportation of acetylene, making it the correct answer in this case. Oxygen (Option A), Nitrogen (Option B), and Carbon dioxide (Option D) are not typically found in cylinders used for storing and transporting acetylene and would not provide the same benefits as acetone does in stabilizing the acetylene gas.