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← ScienceWhich outcome occurs when steam turbine blades excessively erode?
A)Decreased turbine power output✓
B)Increased generator magnetic field
C)Improved condenser heat transfer
D)Lowered boiler water alkalinity
💡 Explanation
The efficiency drops when blade erosion increases the surface roughness, promoting turbulence using more power; therefore the power output declines because boundary layer separation occurs rather than smooth flow.
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