Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance and I want to compare options. Before you start the test, please answer the following question regarding your insurance status. Without insurance you will not be able to drive in California Question An Anti-Lock Braking System (ABS): Answers Allows wheels to lock up. Prevents wheels from locking up. Makes it easier to turn a large vehicle. Assists with the operation of brake lights. Explanation The function of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up during hard braking. Take a FREE Practice Test Now This questions appears in the following tests: West Virginia Double , Kansas Tank , Arkansas Combination , Colorado Combination , Massachusetts Combination , North Carolina Combination , South Dakota Combination , Tennessee Combination ,