Work done per kg of steam in an impulse turbine when the blade speed ratio ( ) is equal to one is _____

Work done per kg of steam in an impulse turbine when the blade speed r

1.	Work done per kg of steam in an impulse turbine when the blade speed ratio ( ) is equal to one is _____
A.	0
B.	C<sub>bl</sub><sup>2</sup>
C.	2C<sub>bl</sub><sup>2</sup>
D.	2C<sub>bl</sub>(C<sub>f1</sub>+C<sub>f2</sub>)
Answer» B. C<sub>bl</sub><sup>2</sup>

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