Automobile Engineering in ME
In Spark Ignition Engine

Only air is introduced into the cylinder
Both (A) and (B)
None of these
The mixture of air and fuel is introduced into the cylinder from carburettor

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Automobile Engineering in ME
The function of positive crankcase ventilation (PCV) system is that it

Feeds blow by gases to the exhaust manifold
Returns blow by gases from the crankcase to the intake system
Promotes combustion by creating a swirling movement in the air-fuel mixture
Mixes fuel with air

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