If a high-pressure hose breaks, what is true about its behavior?

When a high-pressure hose breaks, it can continue to flail even after the pump has stopped due to the residual pressure that remains in the system. High-pressure hoses are designed to handle significant amounts of pressure, and when they fail, they can release this pressure rapidly, causing the hose to whip around uncontrollably. This behavior can occur because the fluid can still be expelled from the broken hose section until all residual pressure has been relieved. The force of the pressurized fluid can create a dangerous situation, which is why it's critical to handle such equipment with caution and to follow proper safety protocols.

In contrast, other scenarios presented suggest immediate halting of motion, intermittent operation, or automatic retraction, which do not align with the typical behavior of a high-pressure hose upon failure. Such behaviors would not accurately reflect the potential hazards associated with hoses under high-pressure conditions.