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← TechnologyWhich outcome occurs when common-rail diesel piezoelectric injectors experience low control voltage?
A)Reduced fuel atomization quality✓
B)Increased exhaust gas recirculation
C)Higher turbocharger boost pressure
D)Lower oil cooler effectiveness
💡 Explanation
Low voltage impairs the piezoelectric stack’s stroke using reverse piezoelectricity; because actuation weakens, fuel atomization during injection is degraded, leading to incomplete combustion. Therefore, fuel isn't correctly vaporized, rather than EGR/boost altering, under-fuelling or cooler behavior.
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