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Which risk increases when a closed-cycle gas turbine experiences insufficient cooling?

A)Compressor surge compromises aerodynamic stability
B)Thermal runaway degrades turbine blades
C)Increased NOx during lean pre-combustion
D)Stator vanes fatigue from liquid erosion

💡 Explanation

Thermal runaway occurs because unchecked temperature rise accelerates oxidation, therefore the turbine blades suffer degradation, rather than compressor stall, which deals with pressure imbalances or excess NOx which is due to lean pre-combustion rather than cooling failure.

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