GSLC Question #318: Real Exam Question with Answer & Explanation

The correct answer is A. FM-200. FM-200 (HFC-227ea) is the widely adopted clean-agent fire suppressant that replaced halon gas after halon was banned for ozone-depleting properties.

Question

Which of the following is a popular replacement for halon gas?

Options

AFM-200
BCO2
CSO2
DOzone

Explanation

FM-200 (HFC-227ea) is the widely adopted clean-agent fire suppressant that replaced halon gas after halon was banned for ozone-depleting properties.

Common mistakes.

B. CO2 suppresses fire by displacing oxygen and is dangerous to occupants, making it a different class of suppression agent, not a direct halon replacement for occupied spaces.
C. SO2 (sulfur dioxide) is a toxic gas and is not used as a fire suppressant or halon replacement.
D. Ozone is a reactive oxidizer - it is actually what halon damages - and is never used as a fire suppression agent.

Concept tested. Clean agent halon replacement fire suppression

Reference. https://www.nfpa.org/codes-and-standards/nfpa-2001-standard-on-clean-agent-fire-extinguishing-systems

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