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← TechnologyWhich operational risk escalates when fuel undergoes thermal decomposition within turbocharger oil?
A)Bearing surface varnish formation✓
B)Increased turbine blade stall
C)Enhanced compressor efficiency
D)Reduced charge air temperatures
💡 Explanation
Fuel decomposition generates varnish due to thermal breakdown, therefore *oil coking* occurs at elevated temperatures of turbocharger bearings because these deposits restrict oil flow, rather than enhancing turbine efficiency.
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