FAA AMT Airframe Practice Exam 2025 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Question: 1 / 1030

Which of the following is considered the least toxic fire extinguishing agent?

Water

Carbon Dioxide (CO2)

Bromotrifluoromethane (Halon 1301)

Carbon Dioxide (CO2) is considered the least toxic fire extinguishing agent because it is naturally occurring and non-toxic to humans. Water, while effective in extinguishing fires, can cause electrocution and damage to certain materials. Bromotrifluoromethane (Halon 1301) and Dry Chemical Powder, while effective in suppressing fires, are highly toxic and can cause harm to humans when inhaled. Therefore, CO2 is the safest option out of the given choices.

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Dry Chemical Powder

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