Automobile Engineering in ME
The auto ignition in a spark ignition engine means

Ignition induced by the passage of a spark
Automatic ignition of the charge at the end of compression
Ignition of the charge before the passage of flame front
Ignition induced to supplement the process of normal combustion

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The function of oil control rings is that it

Lubricates the cylinder wall by releasing oil from its hole
Prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
Keeps the cylinder wall lubricated by holding oil in its channel
Maintains a seal and prevents escape of burned gases and oil leakage

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Automobile Engineering in ME