Railways Technical Ability Turbomachinery Question Bank Turbomachinery

  • question_answer                      In a gas turbine cycle with two stages of rehearing.  working between maximum pressure \[{{p}_{1}}\] and minimum  pressure \[{{p}_{4}},\] the optimum reheat pressure would be:

    A) \[{{({{p}_{1}}{{p}_{4}})}^{1/3}}\] and \[{{({{p}_{1}}{{p}_{2}})}^{2/3}}\]

    B) \[{{(p_{1}^{2}{{p}_{4}})}^{2/3}}\] and \[{{({{p}_{1}}p_{4}^{2})}^{1/2}}\]

    C) \[\sqrt{{{p}_{1}}{{p}_{4}}}\] and \[{{p}_{1}}\sqrt{{{p}_{4}}}\]

    D) \[{{({{p}_{1}}{{p}_{4}})}^{1/2}}\] and \[{{({{p}_{1}}{{p}_{4}})}^{2/3}}\]

    Correct Answer: A

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