Automobile Engineering in ME
The advantage of having a tandem master cylinder arrangement in automobiles is that it

Boosts the brake fluid pressure to reduce the force required to depress the brake pedal
Enhances safety by serving two independent lines in a divided line brake circuit
Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side
Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss

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Automobile Engineering in ME
The crankcase dilution means

Dilution of mixture passing through crankcase in two stroke engines
Dilution of lubrication oil by fuel in the crankcase D. Dilution
Dilution of oil by water in the crankcase
Dilution of fuel in the crankcase

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