Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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Prepare for the Texas Commission on Environmental Quality (TCEQ) Class C Water License Exam. Utilize flashcards, multiple choice questions, and in-depth explanations. Equip yourself with the skills to succeed!

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What is the approximate height above a pressure gauge that reads 72 psi in an elevated storage tank?

100 feet
166 feet
200 feet
250 feet

The correct answer is: 166 feet

The pressure gauge reading of 72 psi indicates the pressure exerted by the water in the elevated storage tank. To convert pressure (psi) into height or elevation (feet), one can use the formula that relates pressure head to the height of water in a tank. The relationship is given by the formula: Height (in feet) = Pressure (in psi) x 2.31. Applying this formula, we can calculate the height as follows: Height = 72 psi x 2.31 = approximately 166.32 feet. This calculation shows that a pressure gauge reading of 72 psi corresponds to an approximate height of 166 feet, confirming that this choice is correct. Understanding this conversion is crucial for water system operators and engineers when designing and operating water distribution systems, as it helps in ensuring adequate water pressure and supply to consumers.