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Railways NTPC (Technical Ability) Theory of Machines and Machine Design Question Bank Theory of Machines

  • question_answer
    What is the correct statement regarding normal shock wave in a gas?

    A) Normal shock is reversible

    B) The downstream flow as well as upstream flow is supersonic

    C) The entropy increases across the shock

    D) The entropy remains constant

    Correct Answer: C

    Solution :

    The entropy increases across the normal shock wave in a gas.


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