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← ScienceWhich outcome results when a diesel engine's fuel injectors fail causing incomplete combustion?
A)Increased particulate matter emissions✓
B)Enhanced engine power at all RPMs
C)Decreased NOx formation in exhaust
D)Improved fuel efficiency during acceleration
💡 Explanation
Elevated particulate matter occurs because the rapid fuel vaporization required for efficient burning does not happen, causing incomplete oxidation. The **fuel-rich combustion** increases soot production, therefore emissions rise rather than reduced, and power output decreases instead of increasing.
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