Practice question

Which choice is safest and most consistent with FLHSMV/FMCSA rules for converter dolly definition?

  1. A coupling device with one or two axles and a fifth wheel
  2. A grease pump for a fifth wheel
  3. A tractor-only brake valve
  4. A cargo tie-down inside a trailer

Answer: A — A coupling device with one or two axles and a fifth wheel

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