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← ScienceWhich outcome results when exceeding the detonative limit in a diesel engine?
A)Uncontrolled combustion promotes engine knocking✓
B)Reduced NOx offsets engine efficiency
C)Faster burn stabilises fuel input
D)Increased lubrication mitigates wall quenching
💡 Explanation
Exceeding the detonative limit leads to uncontrolled burning via chain branching, resulting in engine knocking because auto-ignition occurs too rapidly. Therefore, engine damage increases, rather than stable efficient combustion under normal conditions.
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