Automobile Engineering in ME
The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is

Brake pedal, vacuum servo mechanism, master cylinder, brake lines, brake pads
Brake pedal, master cylinder, brake lines, vacuum servo mechanism, brake pads
Brake pedal, master cylinder, vacuum servo mechanism, brake lines, brake pads
Brake pedal, brake lines, vacuum servo mechanism, master cylinder, brake pads

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Automobile Engineering in ME
The ball joints are used on the tie rod ends, because they

Improve the force transmission speed
Can deal with movement of the suspension both vertically and in other directions
Reduce the amount of sliding resistance
Reduce the amount of noise generated

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