GATE XE 2017 XE-E Q85: Thermodynamic Cycles

Two closed cycle gas turbine engines, A and B, operate on air standard Brayton cycle with efficiencies of

and

, respectively. If they operate between the same maximum and minimum temperatures, but with different pressure ratios of

and

, (

), then,

Your answerChoose one option.

cannot be determined as the efficiencies are maximum only at the optimal

values.

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