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1. A Diesel cycle internal combustion engine has a compression ratio of 18.0 to 1 and a cutoff ratio of 2.20. Determine the cold ASC thermal efficiency of this engine. Assume k = 1.40.

2. Show that, as the cutoff ratio of the Diesel cycle approaches 1.00, the Diesel cold ASC thermal efficiency becomes equal to that of the Otto cycle with the same compression ratio.

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