In a hazmat fire, you should:
Correct. Identify materials and consult the ERG. Only fight small fires that you can safely extinguish; large fires require professional response. Some materials react violently with water.
CDL Practice Question #279
Category: Hazmat
Why this question matters
This question is one of 68 in our Hazmat bank. The reasoning above comes directly from the AAMVA CDL Manual, the source document used by every U.S. state DMV. Memorizing the underlying rule — not just the letter answer — is what separates passing on the first attempt from a return trip and another fee.