Practice question

What does the air compressor do in an air brake system?

  1. Stores hydraulic fluid for the foundation brakes
  2. Measures pushrod stroke at each chamber
  3. Pumps and pressurizes air for the brake system
  4. Applies the parking brake mechanically

Answer: C — Pumps and pressurizes air for the brake system

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