If the compression ratio in I.C. engine increases, then its thermal efficiency will
A. increase
B. decrease
C. remain same
D. none of the mentioned
Answer:A
If the compression ratio in I.C. engine increases, then its thermal efficiency will
A. increase B. decrease C. remain same D. none of the mentioned
Explanation: The compression ratio in I.C. engine is directly proportional to the thermal efficiency, so as it increases, then its thermal efficiency will increase.