Practice question

Which factor BEST predicts how wide the trailer will swing during a 90-degree turn at a given intersection?

  1. Trailer wheelbase, tractor-to-trailer length, and tiller input magnitude
  2. Outside air temperature
  3. Whether the aerial is bedded or extended
  4. Color of the apparatus

Answer: A — Trailer wheelbase, tractor-to-trailer length, and tiller input magnitude

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