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← ScienceWhich consequence results when a two-stroke engine's cycle timing is critically misaligned?
A)Engine knock becomes more pronounced
B)Volumetric efficiency drastically increases
C)The catalyst operates more efficiently
D)Scavenging becomes extremely inefficient✓
💡 Explanation
In a two-stroke engine mistimed cycle events cause incomplete combustion because scavenging relies on precise exhaust timing overlapping with intake; therefore unburnt fuel remains, rather than being efficiently expelled, underperforming the cycle.
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