What term describes the measure of energy per unit weight of a fluid expressed as feet of water?

What term describes the measure of energy per unit weight of a fluid expressed as feet of water?

• A. Head
• B. Pressure
• C. Elevation
• D. Discharge

Answer: (A)

Energy per unit weight of a fluid is described by head, and it’s commonly expressed in feet of water. Head represents how high a column of water would need to be to provide the same energy at that point, linking pressure energy and elevation into a single measure. This is different from pressure, which is force per area; elevation, which is simply height above a reference; and discharge, which is the flow rate. So the term that matches energy per unit weight expressed as feet of water is head.

Energy per unit weight of a fluid is described by head, and it’s commonly expressed in feet of water. Head represents how high a column of water would need to be to provide the same energy at that point, linking pressure energy and elevation into a single measure. This is different from pressure, which is force per area; elevation, which is simply height above a reference; and discharge, which is the flow rate. So the term that matches energy per unit weight expressed as feet of water is head.