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← ScienceWhich risk increases when throttling wet steam in a steam turbine?
A)Erosion by liquid droplet impact✓
B)Oxidation rate of turbine blades
C)Overheating of the rotor hub
D)Decreased thermal cycle efficiency
💡 Explanation
Erosion increases because throttling causes expansion and a drop in pressure and temperature of wet steam. Therefore, more steam condenses releasing liquid water, leading to high-speed water droplets that cause erosion, rather than other thermal or chemical changes.
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