The overall thermal efficiency of an ideal gas turbine plant is (where

1.	The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
A.	rγ - 1
B.	1 - rγ - 1
C.	1 - (1/r) ɣ-1/ɣ
D.	1 - (1/r) ɣ/ɣ-1
Answer» D. 1 - (1/r) ɣ/ɣ-1

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

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