Practice question

When a drawbar trailer is towed, what vertical load does it transfer to the towing vehicle?

  1. The entire mass of the trailer, because the tractor carries everything
  2. Exactly 50 % of the trailer mass at all times
  3. A substantial vertical load, as a semi-trailer does
  4. It does not transfer a substantial vertical load

Answer: D — It does not transfer a substantial vertical load

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