If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is

• A. <img src="/_files/images/civil-engineering/water-supply-engineering/222-10.263-1.png">
• B. <img src="/_files/images/civil-engineering/water-supply-engineering/222-10.263-2.png">
• C. <img src="/_files/images/civil-engineering/water-supply-engineering/222-10.263-3.png">
• D. <img src="/_files/images/civil-engineering/water-supply-engineering/222-10.263-4.png">
• E. none of these.