(P6.21)-In a 100 mm diameter horizontal pipe a venturimeter of 0.5 contraction ratio has been fixed. the head of water on the metre when there is no flow is 3 m (gauge). Find the rate of flow for which the throat pressure will be 2 metres of water absolute. The co-efficient of discharge is 0.97. Take atmospheric pressure head = 10.3 m of water.
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