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Practice quizzes / Pennsylvania CDL Air Brakes Practice Questions - Pennsylvania CDL Air Brakes Knowledge Test Exam / Question 166213
Practice question

Pennsylvania CDL Air Brakes scenario: what does the term 'bobtail' mean in the context of air brakes?

  1. A trailer without an axle
  2. A tractor operated without a trailer attached
  3. A short trailer
  4. A tractor with empty tanks

Answer: B — A tractor operated without a trailer attached

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

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