आदर्श परिस्थितियों में, नोजल कोण α वाले एकल-चरण आवेग टर्बाइन (single-stage impulse turbine) की अधिकतम ब्लेड दक्षता कितनी होती है?

For a pure impulse turbine, the degree of reaction is:

What type of loss occurs due to steam flow not being perfectly aligned with the turbine blades?

What does the blade velocity coefficient in a steam turbine primarily measure?