What is the maximum draw rate per hour of a tank of propane gas?

What is the maximum draw rate per hour of a tank of propane gas?

• A. 10 cubic feet per hour
• B. 50 cubic feet per hour
• C. None of the above
• D. 100 cubic feet per hour

Answer: (C)

The important idea here is that a propane tank doesn’t have a single fixed maximum draw rate per hour. The amount of gas you can pull out is determined by the regulator and the rest of the gas-handling system, not by a universal number. The tank holds high-pressure liquid propane, which vaporizes as it’s drawn, and the regulator reduces that pressure to a usable level for the downstream appliances. The actual flow rate you can achieve depends on the regulator’s flow capacity and the design of the system. Since the problem doesn’t specify a regulator or system rating, none of the listed numeric values can be identified as the universal maximum. In real use, you’d match the regulator’s flow rating to the appliance’s needs and the system’s requirements.

The important idea here is that a propane tank doesn’t have a single fixed maximum draw rate per hour. The amount of gas you can pull out is determined by the regulator and the rest of the gas-handling system, not by a universal number. The tank holds high-pressure liquid propane, which vaporizes as it’s drawn, and the regulator reduces that pressure to a usable level for the downstream appliances. The actual flow rate you can achieve depends on the regulator’s flow capacity and the design of the system. Since the problem doesn’t specify a regulator or system rating, none of the listed numeric values can be identified as the universal maximum. In real use, you’d match the regulator’s flow rating to the appliance’s needs and the system’s requirements.