Georgia DDA 6-Hour Defensive Driver & Driver Improvement Practice Exam

The correct approach to prevent brake locking in a vehicle without Anti-lock Braking System (ABS) is to press the brakes hard and release slightly if a wheel starts to lock, then repeat this process. This technique, often referred to as "threshold braking," allows for maximum stopping power while maintaining control. When a wheel locks up, it loses traction, making it difficult to steer the vehicle. By releasing the brake pressure slightly whenever a wheel begins to lock, you regain traction and can maintain better control over the vehicle's direction. Other options do not provide the same level of control or effectiveness. For instance, simply pushing gently on the brake pedal may not generate sufficient force to stop effectively in an emergency situation. Pumping the brakes hard and fast can lead to a loss of control because it doesn't allow for adequate modulation of brake pressure to prevent lock-up, especially during rapid braking scenarios. Therefore, the recommended method to prevent brake locking involves deliberately managing brake pressure to balance stopping power and traction, making the chosen answer the most effective strategy for drivers without ABS.