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Which consequence results when isentropic compression fails in a diesel engine cycle?

A)Reduced fuel injection nozzle efficiency
B)Decreased exhaust NOx pollutants emitted
C)Increased premature engine valve closure
D)Elevated in-cylinder component temperatures

💡 Explanation

Higher in-cylinder component temperatures result because incomplete isentropic compression causes less air volume reduction and greater energy transfers increase via chaotic adiabatic expansion, therefore reduced heat engine efficiency rather than altered emissions because pollutant control depends on combustion control.

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