Practice question

A Florida CDL applicant is reviewing pintle hook warning during dolly uncoupling. Which statement is correct?

  1. Unlock it before supporting the rear trailer
  2. Unlock it while the rig is angled
  3. Use the light cord as the pintle safety lock
  4. Never unlock the pintle hook with the dolly still under the rear trailer

Answer: D — Never unlock the pintle hook with the dolly still under the rear trailer

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