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← TechnologyWhich outcome occurs in an air-start system when fuel injector timing drifts in a large marine diesel engine?
A)Increased cylinder head thermal stress✓
B)Elevated lubricating oil contamination
C)Reduced compression ignition effectiveness
D)Higher turbocharger compressor surging
💡 Explanation
Cylinder head thermal stress increases because unburnt fuel accumulates during mis-timed injections, causing hot spots via afterburn; this is thermal fatigue, rather than just reduced compression because peak pressures are reached earlier, and not turbocharger issues.
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