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A venturi meter is used to measure the flow rate of water at 26.7°C in a...

A venturi meter is used to measure the flow rate of water at 26.7°C in a pipe. The venturi meter having a throat diameter of 38 mm and its coefficient is 0.98. When the water flow rate in the pipe is 72 m'h, the manometer reading is 1.253 m of mercury. The density of mercury is 13600 kg/m'. Calculate the inside diameter of the pipe in mm

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