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← TechnologyWhich outcome occurs when exceeding piston's compression ratio rating?
A)Detonation causes piston ring failure✓
B)Increased oil viscosity lowers performance
C)Lean mixture creates excess emissions
D)Injector wear induces catalytic converter damage
💡 Explanation
Exceeeding the piston compression ratio leads to pre-ignition because during compression, the air-fuel mixture reaches its auto-ignition temperature prematurely resulting in detonation; therefore, ring failure occurs, rather than lubricity issues or emissions problems.
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