Air enters through the eye of a centrifugal compressor with a stagnati – McqOptions

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1.	Air enters through the eye of a centrifugal compressor with a stagnation temperature 300 K and exits the compressor with a stagnation temperature 424 K. If the isentropic efficiency of the compressor is 0.81 and the ratio of specific heats of the flowing gas (assumed as constant) is 1.4, then the pressure ratio across the compressor is
A.	2.75
B.	5.60
C.	65.00
D.	228.00
Answer» B. 5.60

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