Practice question

What does a brake-door interlock normally do on a bus equipped with one?

  1. It applies brakes and keeps throttle at idle when the rear door is open
  2. It replaces the driver's pre-trip brake check
  3. It locks all emergency exits whenever the bus is moving
  4. It lets the driver leave the seat while the bus is in gear

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

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