2. For initially dry and saturated steam flowing through a nozzle the volue of critical pressure ratio is given by
A. 0.528
B. 0.577
C. 1
D. 0.546
2. For initially dry and saturated steam flowing through a nozzle the volue of critical pressure ratio is given by
A. 0.528
B. 0.577
C. 1
D. 0.546