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Practice quizzes / Illinois CDL Doubles and Triples Practice Questions - Illinois CDL Doubles and Triples Endorsement Test Exam / Question 100196
Practice question

What position should the converter dolly air tank drain valve be in before driving?

  1. Closed
  2. Open halfway
  3. Removed
  4. Connected to the light cord

Answer: A — Closed

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

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