Carbon dioxide is used to put out what class of fires?

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Multiple Choice

Carbon dioxide is used to put out what class of fires?

Carbon dioxide extinguishes by displacing the oxygen and blanket­ing the fire, smothering it without leaving a residue or conducting electricity. This makes it especially effective on fires involving flammable liquids and energized electrical equipment. So CO2 is well suited for Class B fires (flammable liquids) and Class C fires (electrical equipment). It’s not the best choice for Class A ordinary combustibles in open spaces, where it can’t cool or reach hidden pockets, and it doesn’t work for Class D metal fires. That’s why the answer is Class B or C.

Carbon dioxide extinguishes by displacing the oxygen and blanket­ing the fire, smothering it without leaving a residue or conducting electricity. This makes it especially effective on fires involving flammable liquids and energized electrical equipment. So CO2 is well suited for Class B fires (flammable liquids) and Class C fires (electrical equipment). It’s not the best choice for Class A ordinary combustibles in open spaces, where it can’t cool or reach hidden pockets, and it doesn’t work for Class D metal fires. That’s why the answer is Class B or C.

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