What is static pressure in a water system?

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Prepare for the Fire Apparatus Operations and Hydraulics Test. Study efficiently with multiple choice and flashcard questions, each with detailed explanations and hints. Ace your exam!

Multiple Choice

What is static pressure in a water system?

Explanation:
Static pressure is the pressure in a water system when no water is moving. It represents the potential energy in the pipes and is what a gauge reads with the hydrant or valve shut. Once water flows, friction and fittings reduce pressure, so the pressure you see during flow is called residual (or flowing) pressure. The other options describe pressure during flow, a density ratio, or a shortcut for calculating friction loss, none of which define static pressure.

Static pressure is the pressure in a water system when no water is moving. It represents the potential energy in the pipes and is what a gauge reads with the hydrant or valve shut. Once water flows, friction and fittings reduce pressure, so the pressure you see during flow is called residual (or flowing) pressure. The other options describe pressure during flow, a density ratio, or a shortcut for calculating friction loss, none of which define static pressure.

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