Technician A says the wheel cylinder has pressurized brake fluid applied to the pistons inside the cylinder. Technician B says the pistons act on the brake shoes to move them into contact with the brake drum. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. The wheel cylinder is responsible for converting hydraulic pressure from the master cylinder into mechanical force to operate the brake shoes. The pressurized brake fluid applies force to the pistons inside the wheel cylinder which, in turn, act on the brake shoes to move them into contact with the brake drum.

Technician a Says the Wheel Cylinder Has Pressurized Brake Fluid