What is meant by the term 'brake fade'?

The term 'brake fade' refers to a situation where the braking power is reduced due to overheating of the brake components, which can occur during prolonged or excessive braking. When brakes are subjected to high temperatures, the friction materials can become less effective at generating the necessary stopping power. This is especially critical in heavy vehicles like trucks, which can experience significant heat buildup from the friction generated during braking.

Brake fade can lead to dangerously decreased braking performance, making it imperative for drivers to manage their braking techniques effectively, such as using engine braking or avoiding continuous heavy braking on declines. Understanding this phenomenon is crucial for maintaining safe vehicle operation.

The other options do not accurately describe brake fade; increased braking power due to mechanical advantages pertains to systems like hydraulic brakes, the noise made when brakes are applied is unrelated to the effectiveness of braking, and inconsistencies caused by worn tires are a separate issue that affects vehicle handling rather than the braking system directly.