Texas CDL School Bus Practice Test

The Anti-lock Braking System (ABS) is designed to prevent wheel lock-up during hard braking, which is particularly important for maintaining steering control. When a driver presses the brake pedal, ABS modulates brake pressure to ensure that the wheels continue to rotate rather than locking up. This feature allows the driver to steer the vehicle more effectively while braking, helping to avoid skids and potentially hazardous situations, especially on slippery surfaces. By preventing wheel lock-up, the system enhances overall vehicle stability and control, enabling drivers to respond better in emergency scenarios.

In contrast, the other options do not accurately reflect how ABS functions. Quicker stops or reduced stopping time does not directly result from ABS; instead, its primary role is to allow the driver to maintain control during braking. Additionally, ABS does not increase speed during braking; rather, it improves braking safety and control without compromising the braking efficiency itself. Understanding that ABS focuses on control rather than speed or stopping time is essential for effective driving, especially for those operating school buses, where safety is paramount.