![internal combustion engine (S.i. & c.i. engine)
MCQ](https://examobjective.com/storage/2023/04/Copy-of-Whatsapp-Us-1.png)
Increase in compression ratio in CI engines: MCQ is given below:
Q21. Increase in compression ratio in CI engines
(a) decreases turbulence
(b) increases mechanical efficiency
(c) decreases mechanical efficiency
(d) decreases thermal efficiency
TNPSC AE 2013