What device should be stored a minimum of 20 feet from flammable materials?

• A. Oxygen Cylinders
• B. Battery chargers
• C. Welding torches
• D. Grinders

Answer: (A)

The main idea being tested is that storage distance is crucial when oxygen is involved. Oxygen itself doesn’t burn, but it supports and speeds up combustion. If a cylinder leaks or is exposed to heat, the higher concentration of oxygen around flammables makes ignition easier and fires burn more fiercely. Keeping oxygen cylinders at least 20 feet away from flammable materials creates a safe buffer that reduces the chance of a leak or heat source triggering a rapid fire or explosion. In practice, store cylinders upright, capped, in a well-ventilated area, and secured. While other equipment like battery chargers, welding torches, and grinders can also pose fire risks due to sparks or heat, the 20-foot rule specifically addresses the safe storage of oxygen cylinders.