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Within a diesel engine, which process limits peak efficiency?

A)Heat rejected to cold reservoir
B)Incomplete fuel-air mixing
C)Piston friction against cylinder walls
D)Turbocharger compressor inefficiency losses

💡 Explanation

Diesel engines follow the laws of thermodynamics; heat rejected to the cold reservoir limits efficiency because the Carnot cycle defines the maximum possible efficiency based on temperature difference, therefore efficiency decreases rather than other losses like friction which are merely additive.

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