__________ control the flow of propane through the piping system of a dispenser.

• A. Valve
• B. Regulator
• C. Meter
• D. Shutoff valve

Answer: (A)

Controlling flow through the dispenser’s piping is achieved by a valve. A valve can be opened, partially opened, or closed to regulate how much propane moves through the line. While a regulator sets the downstream pressure, a meter records the amount dispensed, and a shutoff valve is used to stop flow, the device that directly manages the flow rate through the piping is the valve.