Examveda
Examveda

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 min-imum

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

Answer: Option D


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Related Questions on Power Plant Engineering in EE

In a boiler installation the natural draught is produced

A. due to the fact that furnace gases being light go through the chimney giving place to cold air from outside to rush in

B. due to the fact that pressure at the grate due to cold column is higher than the pressure at the chimney base due to hot column

C. due to the fact that at the chimney top the pressure is more than its environmental pressure

D. all of the above