Which of the following should be checked when assessing fire hazards?

• A. Roof
• B. Combustibles around the welding area
• C. Workspace floors
• D. All of the above

Answer: (D)

Fire hazards in welding and hot-work come from multiple places, so a thorough assessment looks at all areas where ignition could start or where fuel could spread. Combustibles around the welding area are critical because sparks or molten metal can ignite rags, solvents, paper, or other stored materials in the vicinity. The workspace floors matter too: sparks and spills can land on the floor and ignite if the surface is oily or contains flammable substances, so keeping floors clean, dry, and noncombustible reduces that risk. The roof or overhead areas are part of the hazard picture because embers or heat can reach combustible materials overhead, and the structure can affect fire spread and access for firefighting. Because fire risk can arise from any of these places, checking all of the above gives the most complete fire hazard assessment.