NFPA Firefighter II Practice Questions - NFPA 1001 Firefighter II Certification (Pro Board IFSAC) Exam

Which smoke indicator most strongly suggests impending flashover or rapid fire progression?

Slow, white, lazy smoke Turbulent, dark, high-velocity smoke pushing from multiple openings Light gray smoke at a single window No visible smoke

Correct Answer:

Turbulent, dark, high-velocity smoke pushing from multiple openings

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