Extinguish the Fire. Here are some rules to follow inputting out afire When using the extinguisher, stay as faraway from the fire as possible. Aim at the source or base of the fire, not up in the flames. Use the Right Fire Extinguisher Figures 2.20 and 2.21 detail the type of fire extinguisher to use by class of fire. The BC type fire extinguisher is designed to work on electrical fires and burning liquids. The ABC type is designed to work on burning wood, paper, and cloth as well. Water can be used on wood, paper, or cloth, but don't use water on an electrical fire (can cause shock) or a gasoline fire (it will spread the flames. A burning tire must be cooled. Lots of water maybe required. If you're not sure what to use, especially on a hazardous materials fire, wait for firefighters. Position yourself upwind. Let the wind carry the extinguisher to the fire. Continue until whatever was burning has been cooled. Absence of smoke or flame does not mean the fire cannot restart.