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In a vertical pipe conveying oil of sp. gr. 0.8, two pressure gages have been installed...

In a vertical pipe conveying oil of sp. gr. 0.8, two pressure gages have been installed at A & B where the diameters are 16 cm and 8 cm respectively. A is 2 m above B. The pressure readings have shown that the pressure at A is 9810 N/ m2 greater than the pressure at B. Neglecting all losses, calculate the flow rate (Q).

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