What feature is essential to accurately measure dispensed propane at a dispenser?

• A. Metering system
• B. Breakaway device
• C. Pressure relief valve
• D. Grounding electrode

Answer: (A)

The essential feature is the metering system. It directly measures the amount of propane that flows from the storage container through the dispenser and into the customer’s tank. The meter sends data to a register and billing system, so accuracy here is what determines the correct charge and keeps inventory records reliable. Good meters are designed to stay accurate across different flow rates and pressures and may include temperature compensation to convert the measured volume to standard units.

Breakaway devices are safety features that protect the hose and nozzle if a vehicle pulls away; they don’t measure the delivered amount. A pressure relief valve protects the system from overpressure, and a grounding electrode provides electrical safety; neither is used to measure dispensed propane.