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Practice quizzes / Illinois CDL Air Brakes Practice Questions - Illinois CDL Air Brakes Knowledge Test Exam / Question 99524
Practice question

What part of an air brake system compresses air and sends it toward the storage tanks?

  1. The air compressor
  2. The slack adjuster
  3. The brake drum
  4. The low-air warning device

Answer: A — The air compressor

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

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