When the regulator is attached to a fully charged cylinder of an oxygen tank the cylinder should

When the regulator is attached to a fully charged cylinder of an oxygen tank the cylinder should

• A. Opened slowly to release pressure
• B. Opened quickly to vent pressure
• C. Kept closed until inspected
• D. Opened very slowly; the contents are under pressure

Answer: (D)

Opening a regulator-attached oxygen cylinder slowly is essential because the gas inside is stored at very high pressure. A rapid valve turn can push a large surge of gas into the regulator, risking damage to diaphragms, seals, or fittings and possibly causing an unexpected vent. By opening slowly, the pressure is managed gradually through the regulator, protecting the equipment and reducing the risk of leaks or injury while you set the desired flow.

Opening a regulator-attached oxygen cylinder slowly is essential because the gas inside is stored at very high pressure. A rapid valve turn can push a large surge of gas into the regulator, risking damage to diaphragms, seals, or fittings and possibly causing an unexpected vent. By opening slowly, the pressure is managed gradually through the regulator, protecting the equipment and reducing the risk of leaks or injury while you set the desired flow.