Georgia Commercial Driver License Practice Test

What will indicate that you are experiencing brake fade?

1. Increase in speed

2. Inconsistent brake application

3. Pressure increase without speed change

4. Light pressure on brake pedal

The correct answer is: Pressure increase without speed change

Experiencing brake fade generally means that the braking system is losing its effectiveness, often due to overheating. This can occur when the brakes are used continuously, leading to a rise in temperature that eventually reduces the friction needed to stop the vehicle effectively. When there is a pressure increase in the brake system without a corresponding change in the vehicle's speed, it can indicate that the brake pads are not engaging properly. This lack of performance despite increased pressure is a clear sign of brake fade. This phenomenon can happen when the brake components become too hot, leading to reduced effectiveness. In practical terms, despite pushing harder on the brake pedal (increasing pressure), the vehicle does not decelerate as expected, which is a troubling situation for a driver, especially in commercial driving scenarios where stopping control is vital for safety. The other choices do not specifically capture the essence of brake fade. An increase in speed may suggest a lack of braking power, but it doesn't inherently indicate fading brakes. Inconsistent brake application could point to driver technique rather than the condition of the brakes. Light pressure on the brake pedal might not provide enough force to recognize brake fade effectively.