Practice question

What is the safest CDL action related to combination inspection?

  1. Inspect the coupling system, trailer systems, lines, brakes, lights, landing gear, and load
  2. Inspect only the tractor horn
  3. Inspect only the driver seat
  4. Skip trailer checks after a tug test

Answer: A — Inspect the coupling system, trailer systems, lines, brakes, lights, landing gear, and load

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