What are common signs indicating potential fire hazards?

The correct answer highlights the significant risks associated with cluttered workspaces that contain flammable materials and overloaded electrical outlets. Cluttered areas can easily contribute to fire hazards as they may obstruct access to exits, fire-fighting equipment, or emergency services in case of a fire. When flammable materials are present among this clutter, the likelihood of a fire igniting increases, particularly if they are near heat sources or open flames.

Moreover, overloaded electrical outlets pose another major risk factor. Exceeding the recommended load for an outlet can generate excessive heat, potentially leading to electrical fires. The combination of these elements creates a precarious situation that significantly raises the risk of fire.

In contrast, the other options illustrate various conditions that do not inherently indicate potential fire hazards or represent a less critical risk profile. Clean workspaces and settled dust typically indicate good housekeeping practices, which can help reduce fire risks rather than contribute to them. Focusing solely on smoking materials overlooks the broader range of risk factors present in an environment. Meanwhile, having individual fire extinguishers is a good safety measure but does not reflect the actual fire hazards present in the workspace itself.