Railways Technical Ability Instrument Mechanical Question Bank Instrument Mechanical

  • question_answer The relationship between overall efficiency \[({{\eta }_{0}})\], mechanical efficiency \[{{\eta }_{mech}}\], and hydraulic efficiency \[({{\eta }_{hyd}})\] of a turbine is:

    A) \[{{\eta }_{0}}\,=\,{{h}_{mech}}\,\times \,{{\eta }_{hyd}}\]      

    B) \[{{\eta }_{0}}\,=\,{{h}_{mech}}\,/\,{{\eta }_{hyd}}\]

    C) \[{{\eta }_{0}}\,=\,{{\eta }_{hyd}}\,/\,{{\eta }_{mech}}\]         

    D) \[{{\eta }_{0}}\,=\,{{\eta }_{mech}}\,-\,{{\eta }_{hyd}}\]

    Correct Answer: A


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