Why is it advisable to have a fire watch after welding work on a job site?

• A. To monitor for potential fires for at least 30 minutes after welding
• B. To perform routine maintenance
• C. To improve airflow
• D. To coordinate inspections

Answer: (A)

Welding creates heat, sparks, and molten metal that can ignite flammable materials in the area, sometimes hidden beneath floors, in walls, or in stacked debris. A fire watch provides a trained person who continuously watches for signs of ignition during welding and for a period after the work is finished, so smoldering embers don’t start a fire once people have moved on. The usual minimum is about 30 minutes, but the time can extend if there are nearby combustibles or if conditions demand more protection. The fire watch should have extinguishing equipment and a means to alert others or stop the work if a fire is detected. This measure directly targets preventing fires from hot work, rather than routine maintenance, improving airflow, or coordinating inspections.