A horizontal venturimeter with inlet and throat diameters 20 cm and 10 cm respectively is used to

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Question:

A horizontal venturimeter with inlet and throat diameters 20 cm and 10 cm respectively is used to measure the flow of water. The pressure at inlet is 17.658 N/cm^2 and the vacuum pressure at the throat is 30 cm of mercury. Find the discharge of water through venturimeter. Take Cd=0.98