18124. Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in metres, and Hd = Delivery head in metres) September 14, 2025 by Admin wQHs wQHd wQ(Hs – Hd) wQ(Hs + Hd) ✅ The correct answer is option D.
