Which item should be immediately available in case of a class B fire?

Having a Class B fire extinguisher immediately available is crucial in the event of a Class B fire, which involves flammable liquids such as gasoline, oil, and grease. Class B fire extinguishers are specifically designed to combat fires fueled by these materials by using agents that can effectively suppress flames without exacerbating the situation, as water can do.

Choosing a Class B fire extinguisher ensures that the proper method of fire suppression is at hand, making it both effective and safe for handling flammable liquids. Other items, although potentially useful in specific scenarios, do not provide the same level of direct effectiveness against Class B fires. For example, a water hose, while useful for other fire types, is not appropriate for flammable liquid fires as it may spread the fire further. CO2 extinguishers can be effective against some flammable liquid fires but have limitations compared to dedicated Class B extinguishers. A fire blanket may help to smother small fires or protect individuals but does not serve as the primary means of extinguishing a Class B fire. Thus, having a Class B fire extinguisher on hand is essential for safety in environments where such fires may occur.