Question

Explain the working of a hydraulic break with a simple labelled diagram.

Answer 1

To apply brakes, the foot pedal is pressed due to which pressure is exerted on the liquid in the master cylinder P, so liquid run out from the master cylinder P, to the wheel cylinder Q, As a results , the pressure is equally transmitted and undiminished through the liquid to the piston $B_{1}and{B}_2$ of the wheel cylinder because of which both piston gets pushed outward and break shoes gets pressed against the rim of the wheel due to which the motion of the wheel retards,
As the pressure is transmitted through the liquid, equal pressure is exerted on all the wheels of the vehicle that are connected to the pipe line R.
When the pressure on the pedals is releases , the liquids runs back from the wheel cylinder Q to the master cylinder P and the spring pulls the break shoes to their original position and compels the pistons $B_{1}and{B}_2$ to retune back the wheel cylinder Q. Hence, breaks are release.