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← ScienceWhich outcome results when the intake valve is late closing in an internal combustion engine cycle?
A)Reduced compression due to backflow✓
B)Increased exhaust temperature from incomplete burning
C)Elevated oil consumption due to blow-by
D)Detonation caused irregular combustion
💡 Explanation
When the intake valve is late closing, reverse flow occurs because the piston begins to compress the cylinder volume, forcing some of the intake charge back out of the cylinder. Therefore reduced compression inevitably results, rather than increased exhaust temperature or oil consumption which are related to poor combustion.
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