Which one of the following is NOT considered hot work?

Routing is not considered hot work because it typically involves the removal of material using a tool that does not produce high temperatures or sparks that could ignite flammable materials. Hot work generally refers to activities that generate heat or sparks and can create a fire hazard, which includes tasks like welding, soldering, and grinding. These activities involve significant thermal processes or friction that increase the risk of fire.

Understanding hot work is crucial for fire safety, as these operations require specific precautions such as using fire watches and maintaining fire extinguishing equipment readily available. Recognizing which activities fall under the hot work category helps in implementing the necessary safety protocols.