Practice question

Why can using a retarder, engine brake, or downshifting be especially risky on a slippery road?

  1. It can lock or slow the drive wheels enough to cause a skid
  2. It always improves grip on ice
  3. It makes the steering axle heavier
  4. It turns off ABS permanently

Answer: A — It can lock or slow the drive wheels enough to cause a skid

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