Master the Manitoba Airbrake Exam 2025 – Pump Up Those Brakes with Confidence!

The anti-lock braking system (ABS) in air brakes is designed to prevent wheel lockup during hard braking. When a driver applies the brakes forcefully, ABS uses wheel speed sensors to monitor the rotational speed of each wheel. If the system detects that a wheel is about to lock up, it automatically modulates the brake pressure to that wheel, allowing it to continue rotating and maintain traction with the road surface. This modulation happens rapidly, which helps the driver retain steering control and prevents skidding.

By preserving the ability to steer the vehicle while braking, ABS enhances overall safety, particularly in slippery conditions where the risk of losing control is heightened. This technology is vital for heavy vehicles, where maintaining control is crucial due to their size and weight. The other options address features that are not directly related to the primary function of ABS and do not reflect how the system operates.