Practice question

What is 'brake lag' in air brake systems?

  1. A braking defect
  2. The delay between pressing the brake pedal and the brakes actually applying, typically about 0.5 seconds
  3. The sound brakes make when applied
  4. The distance traveled while braking

Answer: B — The delay between pressing the brake pedal and the brakes actually applying, typically about 0.5 seconds

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