Railways Technical Ability Instrument Mechanical Question Bank Instrument Mechanical

  • 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 fluid

    B) Dynamic pressure of fluid

    C) vapour pressure of fluid

    D) Shear stress of fluid.

    Correct Answer: C

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