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Which outcome occurs when piston rings fail in maintaining optimized cylinder pressure?

A)Increased blow-by into crankcase
B)Decrease combustion chamber pre-ignition
C)Improved valve train lubrication
D)Higher exhaust manifold pressures

💡 Explanation

Increased blow-by occurs because failed piston rings cannot maintain a tight seal. The mechanism of action is pressure leakage. This leads to gases entering the crankcase, therefore increasing blow-by, rather than maintaining the ideal combustion process.

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