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← TechnologyWhich outcome occurs when injector dribble becomes pervasive?
A)Increased unburnt hydrocarbon emissions✓
B)Improved catalyst conversion efficiency
C)Lower peak cylinder pressure
D)Decreased homogeneous fuel distribution
💡 Explanation
Increased hydrocarbon emissions occur because injector dribble leads to incomplete combustion. The fuel droplets are too large and not properly atomized, which reduces combustion efficiency; therefore hydrocarbon emissions increase, rather than improving combustion, within operating temperature.
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