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← TechnologyWhich outcome occurs when a common-rail diesel engine experiences progressive injector nozzle fouling?
A)Increased peak cylinder combustion temperatures✓
B)Decreased exhaust particulate matter emissions
C)More uniform fuel spray distribution
D)Reduced turbocharger compressor surge events
💡 Explanation
Increased peak cylinder temperatures arise because injector fouling impairs the fuel atomization. This incomplete combustion concentrates heat locally due to uneven fuel-air mixing, therefore exhaust temperatures will be high rather than creating reduced turbocharger surge.
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