Which of the following is NOT a listed fire protection measure during welding?

• A. Fire watchers
• B. Fire extinguishers
• C. Sprinkler systems
• D. Oxygen regulators

Answer: (D)

Fire protection during welding centers on preventing fires and quickly controlling any that occur, using people and equipment dedicated to safety as well as automatic protection systems. A fire watcher is there to spot and respond to sparks or embers, fire extinguishers are on hand to suppress small fires before they spread, and sprinkler systems provide automatic protection if a fire starts. Oxygen regulators, on the other hand, regulate the oxygen supply to the welding torch; they don't prevent or control fires and can even feed a flame if not managed properly. That’s why they aren’t considered a fire protection measure.