What is the role of a fire watch, and how long should it remain after hot work?

• A. To monitor for fires during and after welding; typically for a specified period (e.g., 30 minutes) after completion or until safe.
• B. To supervise the welder's performance
• C. To coordinate ventilation
• D. To log hours

Answer: (A)

Fire watch is focused on ignition prevention and rapid response to any fire that could start from hot work. Sparks and molten metal can ignite combustible materials even after the welding or cutting has finished, and embers can remain hot for a while. That’s why the watch stays on site for a specified period after completion—often about 30 minutes, or until the area has cooled and is deemed safe or free of flammable materials. The person in this role must be ready to use extinguishing equipment, stay alert, and coordinate with the crew if a fire is observed, ensuring the area is safe before the work resumes or the site is left. This duty centers on fire detection and control, not on supervising the welder, managing ventilation, or logging hours.