Certified Fire Protection Specialist (CFPS) — Question 4

Which of the following refrigerants has the highest flammability, according to its Safety Group classification?

Answer options

• A. Octaflouropropane
• B. Difluoromethane
• C. Methyl Chloride
• D. Methane

Correct answer: C

Explanation

Methyl Chloride is considered the most flammable among the listed refrigerants according to its Safety Group classification. The other options, while they may have some level of flammability, do not reach the same level of risk associated with Methyl Chloride.