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

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

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

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

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