Brake fade is a result of:
Answers
Brakes being exposed to sunlight.
Brakes being exposed to moisture.
Excessive use of the brakes.
The correct answer and explanation is:
The correct answer is:
Excessive use of the brakes.
Explanation:
Brake fade is a phenomenon that occurs when the braking system becomes less effective due to excessive heat buildup. This loss of braking performance can be attributed to the components of the brake system, such as the brake pads, rotors, or fluid, experiencing high temperatures during intense or prolonged braking.
When a driver applies the brakes repeatedly, especially under heavy load or high-speed conditions (like going downhill or stopping quickly), the brake pads generate friction against the brake rotors to slow the vehicle down. This friction produces heat. As the temperature increases, several factors can cause brake fade:
- Brake Pad Glazing: The brake pads, typically made of friction material, can become glazed when they heat up too much. This means that a hard, smooth layer forms on the surface of the pads, reducing their ability to generate friction with the rotors. As a result, braking power diminishes, and the vehicle may feel like it takes longer to stop.
- Brake Fluid Boiling: The brake fluid inside the brake system is designed to withstand a certain level of heat. However, if the fluid gets too hot, it can boil. Boiling brake fluid produces vapor bubbles that compress when the driver presses the brake pedal, causing the brake system to lose its effectiveness and feel spongy. This can significantly reduce the braking power and increase stopping distance.
- Warped Brake Rotors: Excessive heat can also cause the brake rotors to warp or become uneven. This makes it harder for the brake pads to maintain consistent contact with the rotors, leading to vibration or pulsation when the brakes are applied.
In summary, brake fade is primarily caused by excessive use of the brakes, which results in overheating of the brake components. Proper brake maintenance, avoiding excessive braking, and using proper techniques can help prevent brake fade.