Internal Combustion Engines
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

Detonation
Supercharging
Scavenging
Polymerisation

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
In a typical medium speed 4-stroke cycle diesel engines

Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center
Exhaust valve opens just after bottom dead center and closes just before top dead center
May open and close anywhere
Exhaust valve opens at bottom dead center and closes at top dead center

ANSWER DOWNLOAD EXAMIANS APP