Technician A says that in a self-energizing brake, the rotation of the drum decreases the braking force of the lining against the drum. Technician B says that the force of the brake drum is added to the force supplied by the wheel cylinder. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct. In a self-energizing brake, the rotation of the drum helps to increase the braking force by adding the force of the drum to the force supplied by the wheel cylinder. Technician A is incorrect because the rotation of the drum actually increases the braking force, not decreases it.

Technician a Says That in a Self-Energizing Brake, the Rotation