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Which outcome occurs from exhaust recirculation in diesel engines?

A)Decreased peak combustion temperature
B)Increased fuel combustion efficiency
C)Higher charge air volume intake
D)Reduced engine component wear-out

💡 Explanation

Exhaust Gas Recirculation introduces inert exhaust gases into the intake manifold. This increases the specific heat capacity, therefore the peak combustion temperatures decrease because heat absorption of NOx byproducts takes place rather than NOx formation at high temperature.

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