What is one potential effect of brake fade experienced during long descents?

Answer: B — Decreased stopping function

Brake fade occurs when the braking system overheats during prolonged use, such as during long descents. This overheating can lead to a reduction in the system's effectiveness. The friction materials on the brake pads become less effective at converting kinetic energy to heat, which results in a diminished braking ability. Consequently, the driver may find that the brakes do not respond as expected, leading to a decreased stopping function. This phenomenon can create dangerous situations, especially when immediate stopping power is required to avoid obstacles or hazards. Understanding brake fade is crucial for operator safety and effective vehicle control during operations that involve significant downhill travel.