Explain the difference between shear center flexural center of twist and elastic center?
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in a centrifugal pump .. when we close the delivery valve partially .. does this increase the pressure before or after the valve .. and why ??
1hp=how much rpm
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in a centrifugal pump .. when we close the delivery valve partially .. does this increase the pressure before or after the valve .. and why ??
Why centrifugal pump is not called as a positive displacement type of pump?