Why is it important to keep cylinder valves closed when cylinders are not in use?

• A. To save gas.
• B. To make it easier to move cylinders.
• C. To prevent leaks and accidental discharge; to maintain safety.
• D. To comply with energy efficiency standards.

Answer: (C)

Keeping cylinder valves closed when not in use protects people and property by preventing gas from leaking or being discharged accidentally. Propane is stored under pressure and is highly flammable; even a small leak with an open valve can let gas escape and accumulate in the air, creating an explosive or fire hazard if an ignition source is present. A closed valve stops the flow, reducing the risk during handling, moving, or inadvertent bumps that could loosen connections. It also helps protect the valve and regulator from damage and keeps the system safe from contamination. Saving gas or complying with energy standards aren’t the primary drivers here; the main purpose is safety and preventing accidental releases.