Automobile Engineering in ME
The aluminium alloy is used in cylinder blocks because

The piston is also made of aluminium alloy
It does not require any cylinder liners
It is lighter and has good heat dissipation characteristics
Material cost is low

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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 activating the brakes using vacuum pressure in the event of brake fluid loss
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 serving two independent lines in a divided line brake circuit

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