Delaware Defensive Driving Practice Test 2026 - Free Defensive Driving Practice Questions and Study Guide

The purpose of anti-lock brakes is primarily to prevent skidding. When you apply the brakes suddenly, especially on slippery surfaces, standard brakes can lock up, causing the wheels to stop turning and leading to a loss of control. Anti-lock braking systems (ABS) work by automatically modulating brake pressure when they detect impending wheel lockup. This allows the wheels to continue rotating, which helps maintain steering control while the vehicle is slowing down. As a result, drivers can steer around obstacles even during hard braking situations, significantly increasing safety during critical driving conditions.

The other options are not directly related to the function of anti-lock brakes. Increasing acceleration pertains to how quickly a vehicle can speed up, which is not impacted by braking systems. Enhancing fuel efficiency relates to how well a vehicle uses fuel, a factor influenced by engine and driving style rather than braking technology. Improving comfort during braking might be a secondary benefit due to smoother braking performance, but it is not the primary purpose of anti-lock brakes.