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A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be

A. 79 m/s

B. 188 m/s

C. 450 m/s

D. 900 m/s

Please do not use chat terms. Example: avoid using "grt" instead of "great".