LEED AP with Operations and Maintenance (O+M ) Practice Exam

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For a 0.2 gpc metering faucet with a 12 second cycle duration, what is the calculated faucet flow rate?

0.5 gpm
1 gpm
1.5 gpm
2 gpm

The correct answer is: 1 gpm

To determine the calculated flow rate of the faucet, you can use the formula that relates flow rate, volume, and time. The formula is: Flow Rate (gpm) = (Gallons per cycle) / (Time in minutes) In this context, the faucet dispenses 0.2 gallons per cycle and the cycle duration is 12 seconds. First, convert the cycle duration into minutes: 12 seconds = 12/60 minutes = 0.2 minutes Now, plug the values into the formula: Flow Rate = 0.2 gallons / 0.2 minutes = 1 gpm This calculation shows that the faucet has a flow rate of 1 gallon per minute, which corresponds to the identified choice. Understanding this relationship between flow volume, time, and flow rate is crucial for evaluating the efficiency and sustainability aspects of plumbing fixtures in a building, particularly in the context of LEED certification where water efficiency is a key consideration.