What does ABS (Anti-Lock Braking System) do on air brake equipped vehicles?
a.Automatically stops the vehicle faster
b.Prevents wheel lockup so you maintain steering control during hard braking
c.Eliminates the need for brake maintenance
d.Increases air pressure in the tanks
Explanation
ABS uses sensors on the wheels to detect lockup and automatically reduces and reapplies brake pressure to prevent wheels from locking. This helps the driver maintain steering control during hard braking. ABS does not necessarily shorten stopping distance.