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A penstock, with an internal diameter of 1.3 m, supplies water at a head

equivalent to 127.6 kg/cm2. There is a possibility of 23per cent increase in

the pressure due to transient conditions. The design stress and the efficiency

of the joint may be assumed to be 1023 kg/cm2 and 35 per cent respectively.Calculate the approximate wall thickness of the penstock required

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11y ago

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