## headpressure head or hydrostatic pressure,
a unit of pressure for a fluid, commonly used in water pumping and hydro
power to express the height that a pump must lift water, or the distance
water falls. Head is the weight of a given height (or depth) of water column
at its bottom end, expressed as 'meter head' or 'foot head.' It is independent
of the amount of water: the pressure head of a 3-meter high or deep 5cm-diameter
pipe is the same as that of the 50cm-diameter pipe of the same height or
depth. Total head accounts for friction head
losses, etc. ## Related category• WATER POWER | ||||||

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