• # question_answer The cavitation number of any fluid machineryis defined as $\sigma =\frac{p-p'}{p{{v}^{2}}/2}$ (p is absolute pressure, $\rho$is density and v is free stream velocity) The symbol p? denotes: A) Static pressure of fluidB) Dynamic pressure of fluidC) vapour pressure of fluidD) Shear stress of fluid.

Correct Answer: C

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