What indicates that the foam system is activated?

The indication that the foam system is activated is confirmed by a steady 'on' light on the FoamPro control module, which should remain lit unless foam is actively flowing; in that case, the light will begin to flash. This signaling mechanism is crucial for operators because it provides immediate visual feedback about the operational status of the foam system, allowing them to know whether the system is engaged and functioning as intended.

When foam is being deployed, the system's changes in lighting convey vital information regarding its activation state and can help prevent confusion during high-pressure scenarios where foam application is crucial. The use of a flashing light when foam is flowing indicates that the system is not just activated but is actively engaged in discharging foam, thereby ensuring effective situational awareness for the operator.

While other options might provide some information regarding equipment status, they do not directly represent whether the foam system is engaged as effectively as the visual status of the control module light. Thus, the clarity provided by the foam control module's light is essential for safe and efficient operations in firefighting scenarios.