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← ScienceWhich outcome limits gas turbine efficiency due to high compression?
A)Oxides solidifying, forming turbine blockage
B)Compressor surge induced by stall
C)Uncontrolled autoignition causing knocking✓
D)Increased blade fatigue decreasing lifetime
💡 Explanation
Uncontrolled autoignition limits turbine efficiency because rapid compression heats the air-fuel mixture above its autoignition temperature, causing knocking. This premature combustion reduces energy output, therefore knocking, limiting engine power, rather than blockage; that occurs slowly in different conditions.
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