Internal Combustion Engines
In a four stroke cycle petrol engine, the expansion

May start and end anywhere
Starts at top dead center and ends at bottom dead center
Starts at 30° before top dead center and ends at 50° before bottom dead center
Starts at 30° after top dead center and ends at 50° after bottom dead center

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
Pick up the wrong statement about supercharging

Supercharging at high altitudes is essential
Supercharging results in fuel economy
Supercharging reduces knocking in diesel engines
There can be limited supercharging in petrol engines because of detonation

ANSWER DOWNLOAD EXAMIANS APP