Fire And Smoke Restoration Technician Practice Questions - IICRC Fire And Smoke Restoration Technician (FSRT) Exam

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Burning synthetic materials such as PVC and polyurethane foam produce smoke residues that are particularly dangerous to metals because they:

Form acid residues (e.g., hydrochloric acid) that corrode and pit metal surfaces if not removed quickly Convert metals to plastic through cold-fusion bonding Are alkaline and dissolve aluminum but not steel Are non-reactive and require no urgent cleaning

Correct Answer:

Form acid residues (e.g., hydrochloric acid) that corrode and pit metal surfaces if not removed quickly

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