Which circumstance primarily causes excessive heating in the braking system?

Question

DentroTest · Accepted Answer

The correct answer is prolonged friction between braking elements (pads and discs, or shoes and drums). The braking system works by transforming kinetic energy into heat through friction. If the brakes are abused (for example, on a long downhill slope) or if a mechanical failure keeps the pads in contact, the temperature rises excessiveley and cannot dissipate in time. This causes 'brake fade', which is a temporary loss of braking efficiency due to overheating. The other options (leaks or air) cause a loss of pressure and a spongy pedal feel, but do not generate heat themselves.

Which circumstance primarily causes excessive heating in the braking system?

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