A single-stage impulse with a diameter of 120 cm runs at 3000 rpm. If the blade speed ratio is 0.42, then the inlet velocity of steam will be:

A single-stage impulse with a diameter of 120 cm runs at 3000 rpm. If

1.	A single-stage impulse with a diameter of 120 cm runs at 3000 rpm. 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.	\[45{}^\circ \]m/s
D.	900 m/s
Answer» D. 900 m/s

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A single-stage impulse with a diameter of 120 cm runs at 3000 rpm. If the blade speed ratio is 0.42, then the inlet velocity of steam will be:

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