Practice question

When uncoupling a converter dolly, why should the dolly be secured before releasing it?

  1. An unsecured dolly can roll or fall after the pintle hook is opened
  2. It makes the dolly heavier
  3. It turns off trailer ABS permanently
  4. It drains tractor fuel

Answer: A — An unsecured dolly can roll or fall after the pintle hook is opened

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