Which term describes an electronic braking system that monitors and controls each wheel during braking to prevent wheel lock?

• A. Arterial Bleeding
• B. Anti-Lock Braking System (ABS)
• C. Apex
• D. Asthma

Answer: (B)

An Anti-Lock Braking System (ABS) is an electronic braking system that watches each wheel's speed while you brake. When a wheel is about to skid or stop rotating, the system quickly releases and re-applies brake pressure to that wheel, preventing lockup. This keeps the tire in contact with the road, so you can steer and maintain control during heavy or emergency braking. The action happens very fast, often felt as a pulsing in the brake pedal, and it helps you maintain directional control on wet or slippery surfaces.

The other terms don’t relate to braking systems—one is a medical term for bleeding, another is a term used in driving or geometry contexts, and the last is a respiratory condition.