In which phase of fire control do ARFF personnel extinguish spot fires?

The correct answer focuses on the phase of fire control known as extinguishment and overhaul. During this phase, the primary objective is to put out the fire effectively and ensure that it is fully controlled, which includes extinguishing any spot fires that may have ignited in the vicinity of the main fire. This includes addressing smaller flames or embers that can potentially lead to re-ignition if not adequately addressed.

Extinguishment involves the application of water, foam, or other suppression agents to eliminate the source of ignition and cool down the area to prevent fire spread. The overhaul aspect ensures that all potential hotspots are thoroughly checked and managed to minimize the risk of flare-ups. This phase is critical in the full process of fire control as it guarantees that all areas are treated to prevent any resurgence of fire.

The other phases, such as fire prevention, detection and notification, and suppression, each serve unique functions in fire management but do not specifically focus on the direct extinguishing of active fires, especially in the context of spot fires. Fire prevention aims to avoid fires from starting, detection and notification involve identifying and alerting relevant personnel about a fire, while suppression generally refers to strategies used to control and reduce fire intensity prior to full extinguishment.