Practice question

A driver is reviewing uncoupling lines. Which answer matches official New York DMV or FMCSA guidance?

  1. leave lines dragging
  2. cut lines if stuck
  3. disconnect all dolly air and electric lines and secure them
  4. tie lines to the steering wheel

Answer: C — disconnect all dolly air and electric lines and secure them

The correct answer is shown above. Try the full quiz for additional practice.

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