Question: The nozzle on the end of a fire hose, as shown in Figure QA.2 is supplied with water at a gauge static pressure of

The nozzle on the end of a fire hose, as shown in

The nozzle on the end of a fire hose, as shown in Figure QA.2 is supplied with water at a gauge static pressure of 2.2 bar. The inlet to the nozzle is 80 mm in diameter and the nozzle outlet diameter is 20 mm. Assume that the nozzle is orientated horizontally and discharges water to an atmospheric pressure. Neglecting any losses due to friction, determine the: ) Nozzle inlet and outlet velocities. (6 marks] ) Mass flow rate of water within the hose. (2 marks) i) Magnitude of the direct force acting on the fluid control volume. [6 marks) iv) Direction of the direct force acting on the fluid control volume. (1 mark) Water Water Jet Jet Hose Nozzle Figure QA.2: Water flow through a fire hose nozzle

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