Railways Technical Ability Turbomachinery Question Bank Turbomachinery

  • question_answer Consider the following statements about modification? gas turbine power plant working en a simple Brayton cycle:
    1. Incorporation of regeneration process increases specific work output as well as thermal efficiency.
    2. Incorporation of regeneration process increases thermal efficiency but specific work output remains unchanged.
    3. Incorporation of intercooling process in a multi- stage compression increases specific work output but the heat input also increases.
    4. Incorporation of intercooling process in a multi-stage compression system increases specific work output, but the heat addition remains un-changed.
    Which of the above statements are correct?

    A) 1 and 3            

    B) 1 and 4

    C) 2 and 3            

    D) 2 and 4

    Correct Answer: D


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