Which factor is a primary reason for using a fire watch on a construction site during hot work?

• A. To supervise general site activity
• B. To monitor for ignition sources during hot work and prevent fires
• C. To log worker hours
• D. To inspect electrical panels

Answer: (B)

Hot work creates ignition risks from sparks and flames near combustibles. The fire watch is kept on hand specifically to monitor for ignition sources during the hot work and to prevent fires by taking immediate action if sparks or heat are detected. They ensure extinguishing equipment is ready, clear nearby flammable materials from the area, and stay on site for a period after the work ends to catch any smoldering fires. This focus on detecting and stopping ignition tied directly to the hot work makes it the best fit. Other options describe general site tasks, hours logging, or electrical inspections, which don’t address the immediate fire risk posed by hot work.