What is duty point? Please refer last chapter S.H.Curve. When SH curve is superimposed over QH Curve, the SH curve line cuts QH curve at a point. This point is known as duty point.
That means the pump operates at this point. If we ref combined curve, vertical line dropped from this point, will give other parameters of pump such as power it is consuming, the flow it is generating etc. And horizontal line from this point will give the head developed by the pump.
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