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Railways NTPC (Technical Ability) Power Plant Engineering Question Bank Power Plant Engineering

  • question_answer
    In a steam turbine, the enthalpy drops in the fixed blade and moving blade are 48 kJ and 32 kJ respectively. The degree of reaction is:

    A) 40%                             

    B) 55%

    C) 60%                             

    D) 66.6%

    Correct Answer: C

    Solution :

    \[{{R}_{d}}=\frac{{{(\Delta h)}_{m}}}{{{(\Delta h)}_{m}}+{{(\Delta h)}_{f}}}=\frac{48}{48+32}\]\[=\frac{48}{80}=0.60\,\,or\,\,60\,%\]


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