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Practice quizzes / Arkansas CDL Air Brakes Test Practice Questions - Arkansas Commercial Driver License (CDL) Air Brakes Knowledge Test Exam / Question 49462
Practice question

What component compresses air for the air brake system?

  1. The air dryer
  2. The air compressor
  3. The brake chamber
  4. The slack adjuster

Answer: B — The air compressor

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

Practice more: Arkansas CDL Air Brakes Test Practice Questions - Arkansas Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →
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