At which of the following compression ratios does the efficiency of an engine begin to diminish with increasing compression?
A)12:1.
B)16:1.
C)23:1.
D)25:1.

Name: At which of the following compression ratios does the efficiency of an engine begin to diminish with increasing compression? A)12:1. B)16:1. C)23:1. D)25:1.
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Question

Quizplus · Accepted Answer

At a compression ratio of around 23:1, the efficiency gains from increasing compression begin to diminish due to factors like increased heat loss and the onset of engine knocking.

At Which of the Following Compression Ratios Does the Efficiency