Practice question

If a cargo fire breaks out in your enclosed trailer, what should you do?

Open the trailer doors immediately to see the fire and use your extinguisher
Keep the trailer doors closed to limit oxygen, pull over safely, call 911, and let firefighters handle it
Continue driving to the nearest fire station
Disconnect the trailer from the tractor and drive away

Answer: B — Keep the trailer doors closed to limit oxygen, pull over safely, call 911, and let firefighters handle it

The correct answer is shown above. Try the full quiz for additional practice.