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

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

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Automobile Engineering in ME
The composition of the electrolyte in a fully charged battery is that

The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight
The electrolyte is pure distilled water
The electrolyte is pure sulphuric acid

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