Automobile Engineering in ME
The sequence order of events in a four stroke engine is

Suction compression power exhaust
Suction power compression exhaust
Exhaust compression power suction
Suction exhaust power compression

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The function of a first compression ring (top ring) is that it

Creates swirl
Increases the combustion temperature
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
Maintains a seal and prevents the fuel leakage

ANSWER DOWNLOAD EXAMIANS APP