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← ScienceWhich mechanism reduces the efficiency of a Diesel cycle engine during rapid acceleration?
A)Incomplete combustion due to transient fuel surge✓
B)Increased heat loss through cylinder walls
C)Elevated friction within the fuel injector
D)Delayed valve timing due to thermal expansion
💡 Explanation
When rapidly accelerating, transient fuel supply causes incomplete combustion to be more likely because maintaining an perfect air-fuel ratio becomes more challenging, thus unburnt hydrocarbons increase and decreases efficiency.. Therefore, incomplete conbustion results decreases the efficiency.
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