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← ScienceWhich outcome occurs when high-pressure steam bypasses turbine blades?
A)Reduced turbine lifespan from thermal stress✓
B)Increased generator output power factor
C)Optimized steam condenser operating efficiency
D)Improved boiler feedwater purification capacity
💡 Explanation
Thermal stress increases because quenching occurs; the rapid temperature change weakens the metal, leading to fatigue. Therefore, thermal stress explains lifespan reduction, rather than changes in energy output, condenser cooling, or improved purification capabilities.
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