Propane cylinder on construction site must be equipped with which device?

Propane cylinder on construction site must be equipped with which device?

• A. Vaporizer
• B. Standing pilot
• C. Random gas selector
• D. Collar

Answer: (C)

On a propane cylinder used on a construction site, controlling and isolating the gas flow is essential for safety. A gas selector valve serves this purpose by directing the gas from the cylinder to the correct line and allowing quick shut-off when needed. This helps prevent leaks, backflow, or cross-connection when multiple hoses or tools are in use, making it the best choice for safe operation in a dynamic job-site environment. A vaporizer changes liquid propane to gas but isn’t the primary safety device for cylinder connections. A standing pilot is a continuous flame used in some appliances and isn’t a requirement for cylinder safety. A collar protects the valve from physical damage but does not control gas flow.

On a propane cylinder used on a construction site, controlling and isolating the gas flow is essential for safety. A gas selector valve serves this purpose by directing the gas from the cylinder to the correct line and allowing quick shut-off when needed. This helps prevent leaks, backflow, or cross-connection when multiple hoses or tools are in use, making it the best choice for safe operation in a dynamic job-site environment.

A vaporizer changes liquid propane to gas but isn’t the primary safety device for cylinder connections. A standing pilot is a continuous flame used in some appliances and isn’t a requirement for cylinder safety. A collar protects the valve from physical damage but does not control gas flow.