Automobile Engineering in ME
Vulcanizing means

Heating rubber under pressure
None of the listed here
Melting rubber while stirring it
Spraying with special paint

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

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

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