What is the correct symbol color for a Class B fire?

The correct symbol color for a Class B fire is red. Class B fires involve flammable liquids, gases, and greases, which can be particularly hazardous and require specific extinguishers for effective management. The color red is universally recognized in fire safety to indicate the presence of flammable substances, making it significant for alerting personnel to the risks associated with these types of fires. By using red to signify Class B fires, it provides a clear and immediate visual cue that aids in rapid identification and appropriate response in emergency situations. This color coding helps ensure that firefighters and bystanders can quickly understand the nature of the fire and select the appropriate firefighting equipment.