Practice question

When uncoupling a converter dolly from the lead trailer, what should be controlled before opening the pintle hook?

  1. The dolly drawbar, dolly brakes or chocks, and surrounding area
  2. Only the radio volume
  3. Only the tractor fuel cap
  4. Only the cargo seal number

Answer: A — The dolly drawbar, dolly brakes or chocks, and surrounding area

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