Explain the knocking phenomena in SI engine and CI engine.
Explain the different combustion stages of CI engine.
Why lowering the compression ratio in CI engine increases the knock tendency?
Differentiate between SIE and CIE knocking mechanism.
How spark timing affects knock in SIE?
What is swirl? When is it necessary?
How SIE knocking mechanism differ from CIE knocking mechanism?
How supercharging affects knock in SIE and CIE?
What are swirl and squish? How these play important role in CIE combustion?
Why higher compression ratio is not encouraged in SI engine?
How spark plug location affects knock in spark ignition engine?
Why does CI engine run at lower speed?
How fuel/air ratio affects knock in spark ignition engine?
If spark 28∘28^\circ28∘ BTC gives slight knock, then spark 32∘32^\circ32∘ BTC gives intense knock, Explain why?
Explain why the increase of the time of exposure of the unburned mixture to autoigniting conditions will increase the possibility of knock in SIE?
Explain the combustion process in the compression ignition engine.