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Practice quizzes / TX CDL Doubles and Triples Practice Questions - Texas CDL Doubles and Triples Endorsement Test Exam / Question 189638
Practice question

What must be confirmed after coupling the rear trailer?

  1. An action not supported by DPS Section 7
  2. Air reaches the rear trailer brakes
  3. A passenger endorsement only
  4. A cargo paperwork shortcut

Answer: B — Air reaches the rear trailer brakes

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

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