Home › CDL Practice Tests › General Knowledge Questions › Question 113
What is the main safety benefit of antilock brakes on a truck during a hard stop on a slick surface?
- A.They keep the wheels rolling so the driver can still steer while braking hard
- B.They shorten every stop to half the normal distance
- C.They let the driver release the steering wheel
- D.They replace the need for tire tread
Correct answer
A. They keep the wheels rolling so the driver can still steer while braking hard
Why
By preventing wheel lockup, ABS preserves steering control and stability during emergency braking. On some surfaces the stopping distance may not be shorter, but a steerable stop is far safer than a sliding one.
Manual topic: Air Brakes - Antilock Brakes · From the General Knowledge practice bank (GK-113).