Practice question

What is true about automatic slack adjusters?

  1. They make brake inspection unnecessary
  2. They should be manually adjusted at every stop
  3. They are illegal on commercial air brake vehicles
  4. They still must be checked during inspection

Answer: D — They still must be checked during inspection

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Practice more: Alberta Air Brake (Q) Knowledge Test Practice Questions - Alberta Air Brake (Q Endorsement) Knowledge Test Exam - Variant 2 →