Automobile Engineering in ME
The function of an alternator in an automobile is to

Supply electric power
Converts mechanical energy into electrical energy
Partly converts engine power into electric power
Continually recharges the battery

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Automobile Engineering in ME
In radial tyres

Inner tubes are always used
One ply layer runs diagonally one way and another layer runs diagonally the other way
None of these
All plies run parallel to one another and vertical to tyre bead

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

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

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