Division Operations 4 Practice Test

When hydraulic changes affect the attack line, the person in charge of the hose team needs to know right away. A PRV or PRD can alter nozzle pressure and flow, so informing the Fire Attack Group Supervisor allows immediate tactical adjustments—like changing nozzle choice, throttling or stepping back the flow, or coordinating with the pump operator to keep the stream effective and safe. The Incident Commander oversees the broader incident, the Safety Officer watches for hazards, and the Liaison Officer handles external communications, but the direct control and adjustment of the attack line live with the Fire Attack Group Supervisor.