How do anemometers assist fire control workers?

Anemometers assist fire control workers primarily by measuring wind conditions. Understanding wind speed and direction is crucial during fire response and prevention activities. Wind can greatly influence the spread of fire, as it can carry embers and flames to new locations, leading to rapid fire escalation.

By using an anemometer, fire control workers can gain insights into the current wind conditions, which helps them make informed decisions about firefighting strategies, safety measures, and resource allocation. For instance, knowing the wind direction allows firefighters to position themselves effectively, predict potential fire behavior, and mitigate risks associated with rapidly changing conditions.

The other options, while related to fire safety and control, do not accurately reflect the primary job of anemometers in this context. Predicting where fires will start involves more complex wildfire modeling and analysis, gas leak detection requires different equipment, and temperature calculation of flames involves thermal imaging or other specific tools rather than wind measurement devices. Therefore, the measurement of wind conditions stands out as the critical function of anemometers in assisting fire control workers.