The speed ratio of an impulse turbine operating under a head off 400m – McqOptions

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1.	The speed ratio of an impulse turbine operating under a head off 400m is 0.46. The p.c.d ofturbine wheel is 22.25m then rotational speed, in rpm is
A.	245
B.	346
C.	692
D.	946
Answer» C. 692

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