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Which color on a Hazmat diamond indicates flammability?
Blue
White
Red
Yellow
Reveal Answer
Correct Answer:
Red
Explanation:
Red on a Hazmat diamond indicates flammability. In the NFPA 704 system, the diamond is split into four colored fields: blue for health, red for flammability, yellow for instability/reactivity, and white for special hazards. Each field can carry a number from 0 to 4 that shows how severe that hazard is, with higher numbers meaning greater danger. The red section is specifically about how easily a material can ignite and burn, so it’s the color that signals flammability. The other colors warn about different hazards—blue about health risks, yellow about instability or reactivity, and white for special notes—helping responders quickly gauge overall risk.
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