By using fuel injection in an SI engine, better ………. efficiency is obtained.
A. thermal
B. mechanical
C. unpredictable
D. none of the mentioned
Answer:A
By using fuel injection in an SI engine, better ………. efficiency is obtained.
A. thermal B. mechanical C. unpredictable D. none of the mentioned
Explanation: Better thermal efficiency is obtained, by using fuel injection in an SI engine, .