How should ventilation be controlled during a live fire evolution?

How should ventilation be controlled during a live fire evolution?

• A. Ventilation must be planned and controlled to support safety, using methods such as positive-pressure or staged ventilation.
• B. Ventilation should be left to operator discretion to speed up fire growth.
• C. Ventilation should be continuous at maximum rate regardless of conditions.
• D. Ventilation is optional if visibility is good.

Answer: (A)