In the NFPA hazard diamond, which color is used to indicate flammability?

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Multiple Choice

In the NFPA hazard diamond, which color is used to indicate flammability?

Explanation:
The key idea is how the NFPA 704 hazard diamond uses color coding to convey different types of risk. In this system, the red section of the diamond represents flammability—the tendency of a material to ignite and sustain combustion. A number from 0 to 4 is shown in that red quadrant to indicate how flammable the material is, with higher numbers meaning greater flammability. The other colors serve different purposes: blue indicates health hazards, yellow indicates reactivity (stability), and white covers special hazards. So, when you’re looking at the diamond and ask which color signals flammability, it’s the red quadrant.

The key idea is how the NFPA 704 hazard diamond uses color coding to convey different types of risk. In this system, the red section of the diamond represents flammability—the tendency of a material to ignite and sustain combustion. A number from 0 to 4 is shown in that red quadrant to indicate how flammable the material is, with higher numbers meaning greater flammability. The other colors serve different purposes: blue indicates health hazards, yellow indicates reactivity (stability), and white covers special hazards. So, when you’re looking at the diamond and ask which color signals flammability, it’s the red quadrant.

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