Control time is defined as the time required to control what percentage of visible flames?

• A. 70%
• B. 80%
• C. 90%
• D. 100%

Answer: (C)

Control time is a crucial measurement in firefighting, specifically related to the effectiveness of suppression efforts. It is defined as the time needed to control a significant percentage of visible flames, and it indicates how swiftly and efficiently firefighters can manage a fire to prevent it from spreading and causing greater damage.

The correct choice reflects the standard benchmark within the firefighting community, where control time typically aims for the extinguishment of at least 90% of visible flames. This high percentage is crucial in managing fire situations, particularly in airport environments where safety and rapid response are paramount. Achieving control over 90% of flames is critical for ensuring the complete suppression of the fire and minimizing risks to life and property.

In scenarios involving fire, especially those found in airports, even small flames can pose severe threats if not controlled quickly. Therefore, aiming for a 90% control rate illustrates the urgency and the aggressive tactics that fire officers must employ to ensure public safety, reduce damage, and facilitate a quick return to normal operations.