Practice question

What is the result of improperly adjusted brake shoes in the air brake system?

  1. The air pressure will increase.
  2. Braking efficiency will decrease and premature wear will occur.
  3. Brakes will become more powerful.
  4. Brakes will apply automatically.

Answer: B — Braking efficiency will decrease and premature wear will occur.

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Practice more: CDL Air Brakes Endorsement Test →