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Question

The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)



Options:
A .  `r^(Y-1)`
B .  `1 - r^(Y-1)`
C .  `1 - (1/r)^(Y - 1//Y)`
D .  `1 - (1/r)^(Y//Y - 1)`
Answer: Option C


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