Practice question

What is the function of anti-lock braking system (ABS) and electronic stability control (ESC / ESP) on modern commercial trucks?

  1. To prevent wheel lockup during braking, maintain directional steering control, and selectively brake individual wheels to prevent rollover and jackknifing
  2. To allow the truck to drive on two wheels
  3. To increase engine horsepower
  4. To automatically load and unload cargo

Answer: A — To prevent wheel lockup during braking, maintain directional steering control, and selectively brake individual wheels to prevent rollover and jackknifing

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