Which sequence correctly describes the order of actions to control a regulator free-flow in the field?

Which sequence correctly describes the order of actions to control a regulator free-flow in the field?

• A. Open the valve, stand still, and wait for a supervisor.
• B. Remove the facepiece, then continue operation.
• C. Close the cylinder valve to stop air, move to safety, and tag out for repair.
• D. Disconnect the regulator from the cylinder.

Answer: (C)

When a regulator free-flow occurs, the priority is to stop the air supply to prevent uncontrolled flow and reduce danger. Close the cylinder valve immediately to shut off the air. Once the flow is stopped, move to a safe location away from the hazard. Then tag the equipment out for repair so it cannot be used again until a qualified technician inspects and fixes it. This sequence directly addresses the immediate risk by stopping the source of air, secures you by getting to safety, and ensures proper maintenance through tagging. Opening the valve would worsen the free-flow, removing the facepiece doesn’t stop the problem and can expose you to hazards, and disconnecting the regulator from the cylinder could create additional dangers and isn’t the correct first step.

When a regulator free-flow occurs, the priority is to stop the air supply to prevent uncontrolled flow and reduce danger. Close the cylinder valve immediately to shut off the air. Once the flow is stopped, move to a safe location away from the hazard. Then tag the equipment out for repair so it cannot be used again until a qualified technician inspects and fixes it. This sequence directly addresses the immediate risk by stopping the source of air, secures you by getting to safety, and ensures proper maintenance through tagging. Opening the valve would worsen the free-flow, removing the facepiece doesn’t stop the problem and can expose you to hazards, and disconnecting the regulator from the cylinder could create additional dangers and isn’t the correct first step.