Anti-Lock Braking Systems (ABS): Question Anti-Lock Braking Systems (ABS): Answers Are not used on trucks. Are only used on tucks carrying hazardous materials. Allow drivers to stay in control when braking. Explanation An Anti-Lock Braking System (ABS) helps prevent wheels from locking up during a hard application of brakes. This questions appears in the following tests: Arizona Class A Knowledge Test Arizona Tank Idaho Double Oklahoma Double South Carolina Class B Knowledge Test Tennessee Double
