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2026 District Of Columbia DMV HazMat Endorsement Test 1
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Question Number 3
3. When refueling a vehicle that contains hazardous materials:
The engine should be left on.
The engine should be turned off.
The gas nozzle may be left unattended.
No other vehicles should be at the refueling station.
✔ Correct Answer:
The engine should be turned off.
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