Practice question

Why does 49 CFR 383.115 include oscillatory sway and yaw stability in the T endorsement knowledge areas?

  1. Multi-trailer combinations can develop side-to-side motion and rotation that require smooth control
  2. These are cargo billing terms
  3. They apply only to passenger buses
  4. They replace coupling procedures

Answer: A — Multi-trailer combinations can develop side-to-side motion and rotation that require smooth control

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