In isentropic compression, similar to the aircraft refrigeration cycle – McqOptions

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1.	In isentropic compression, similar to the aircraft refrigeration cycle, what is ram efficiency?
A.	It is proportional to mass flow rate
B.	Ratio of input to output ram pressure
C.	Ratio of aircraft velocity to sonic velocity
D.	Ratio of actual pressure rise to isentropic pressure
Answer» C. Ratio of aircraft velocity to sonic velocity

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