Question 1 of 2921866636eec28f7522a1c51cdd6

Which statement is TRUE concerning carbon dioxide?

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Question 1 of 29218
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Which statement is TRUE concerning carbon dioxide?

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🔍 Key Concepts

• Carbon dioxide properties: density compared to air and behavior in enclosed spaces • Meaning of an inert gas in firefighting and whether CO2 fits that description • Typical extinguisher use of CO2 by fire class (A, B, C)

đź’­ Think About

• Think about what happens to CO2 in a low compartment on a ship: does it rise toward the overhead or settle low? • When CO2 is used for firefighting, does it chemically react with the fire, or mainly smother and displace oxygen? • On board ships, which classes of fire are CO2 systems and portable CO2 extinguishers most commonly installed to protect?

âś… Before You Answer

• Verify whether CO2 is heavier or lighter than air. • Confirm which fire classes CO2 is recommended or NOT recommended for primary use. • Check the definition of inert gas in firefighting context and see if CO2 meets that definition.