Which type of task is considered 'hot work' and requires a permit and controls?

Which type of task is considered 'hot work' and requires a permit and controls?

• A. Routine cleaning tasks with no heat.
• B. Any task that creates heat, sparks, or open flames, such as welding or grinding.
• C. Replacing light bulbs with LED.
• D. Painting walls with water-based paint.

Answer: (B)

Hot work means any task that generates heat, sparks, or open flames and could ignite flammable materials. Because these activities can start fires, they require a hot work permit and safety controls such as clearing flammable materials, having a fire extinguisher and fire watch, and using proper procedures and PPE. The best answer identifies tasks that genuinely produce ignition sources, like welding or grinding, which fit this category. Routine cleaning with no heat, replacing a light bulb with LED, and painting with water-based paint do not involve ignition sources, so they usually do not require a hot work permit.