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

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

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Automobile Engineering in ME
The purpose of a balancer shaft is to

Reduce vibrations caused by the crankshaft rotation
Balance the timing in the movement of the two groups of pistons
Adjusts the timing of the intake and exhaust valve openings
Increase inertia force of the rotating crankshaft

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