1.

In a single stage Parson s reaction turbine, the mean blade velocity is observed to be 60 m/s and the nozzle angle to be 20 . Determine the the entrance angle of moving blade if the absolute velocity of the steam leaving the nozzle is 120 m/s.

A. 38
B. 56
C. 23
D. 28
Answer» B. 56


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