What is the measure of the pressure of water expressed in feet of height of water?

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Multiple Choice

What is the measure of the pressure of water expressed in feet of height of water?

Explanation:
In hydraulics, pressure can be expressed as an equivalent height of water. This height is called head. It’s a convenient way to compare pressure with elevation and flow because it tells you how high water would rise if that pressure were converted to potential energy. So a pressure value expressed as feet of water is the pressure head. The other terms don’t capture pressure as a height: pressure is force per area (not a height), elevation is just a vertical distance, and discharge is a flow rate.

In hydraulics, pressure can be expressed as an equivalent height of water. This height is called head. It’s a convenient way to compare pressure with elevation and flow because it tells you how high water would rise if that pressure were converted to potential energy. So a pressure value expressed as feet of water is the pressure head. The other terms don’t capture pressure as a height: pressure is force per area (not a height), elevation is just a vertical distance, and discharge is a flow rate.

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