What is scavenging? Explain the scavenging process with cylinder pressure vs. crank angle diagram.
Why larger engine is more efficient?
How mechanical supercharging process is different from turbocharging?
Why is diesel engine NO2/NOx\text{NO}2/\text{NO}{\text{x}}NO2/NOx decreases with the increase of load?
What is supercharging? How is it achieved?
How can constituents of exhaust gases be controlled? Describe briefly.
Why does CI engine exhaust gases contain insignificant amount of CO?