The critical pressure ratio of a convergent nozzle is defined as_____________?

A. the ratio of outlet pressure to inlet pressure of nozzle

B. the ratio of inlet pressure to outlet pressure of nozzle

C. the ratio of outlet pressure to inlet pressure only when mass flow rate per unit area is minimum

D. the ratio of outlet pressure to inlet pressure only when mass flow rate = cCorrect Answer

Correct Option: D. the ratio of outlet pressure to inlet pressure only when mass flow rate = c

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