The vertical distance between the centerline of the pump and the point of free delivery of water is called:

Correct option is C

Static discharge head is the vertical distance between the centerline of the pump and the point of water delivery when the pump is not running.
(a) Static head includes suction and discharge heads.
(b) Static suction head is the distance water must be lifted to reach the pump.
(d) Friction head refers to losses due to friction in pipes.