Which practice supports line discipline during high-flow discharge operations?

• A. Maintain clear communication, PPE use, keep personnel out of the water stream path, manage line tension, and maintain proper line discipline.
• B. Stand directly in line with the stream to guide it.
• C. Disable PPE to increase mobility.
• D. Ignore hose tension and move freely.

Answer: (A)

Controlling the hose line and crew is essential for safety during high-flow discharge. Maintaining clear communication ensures everyone knows positions and actions, PPE provides protection against the high-pressure water and debris, keeping personnel out of the water stream path prevents direct contact with the moving jet, managing line tension prevents the hose from whipping or snapping, and maintaining proper line discipline keeps the team organized and ready to react to changes in flow. Together, these practices reduce risk and keep the operation safe and effective.

Stand directly in line with the stream to guide it places you in the water jet’s path and risks serious injury; disabling PPE removes critical protection, and ignoring hose tension leads to uncontrollable hose movement and possible harm or equipment damage.