Practice question

How does a rear-door brake and accelerator interlock work on an urban mass transit coach?

  1. It applies the brakes and holds the throttle in idle when the rear door is open
  2. It opens all emergency exits automatically
  3. It releases the parking brake whenever passengers board
  4. It disables all service brakes

Answer: A — It applies the brakes and holds the throttle in idle when the rear door is open

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