Water Supply & DistributionQuestion 46 of 360
Elevation loss: a fixture is located 40 feet above the water meter. Using 0.433 psi per foot of elevation, how much static pressure is lost to elevation alone?
a.About 9.2 psi
b.About 17.3 psi
c.About 40 psi
d.About 4.3 psi
Explanation
Elevation loss equals 40 ft x 0.433 psi/ft = about 17.3 psi. The 9.2 and 4.3 figures use incorrect factors, and 40 psi wrongly equates feet directly to psi without the 0.433 conversion.
Law Reference: 2022 California Plumbing Code (CPC) §610.0Practice all 360 questions free — no signup required.
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