As a general-knowledge driver without a hazmat endorsement, what should you recognize about a diamond-shaped placard on another vehicle?
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Correct answer to question 79 (General Knowledge): It signals that vehicle is carrying a hazardous material and may need extra following distance or caution around it
Why
Even without hauling hazmat yourself, recognizing a diamond placard as a hazard warning helps you judge how much extra space or caution to give that vehicle, especially near a crash or spill.
Updated: November 2026