Firefighters must learn to put out fires in many different materials. In this picture, the firefighters are learning to extinguish a fire in a propane gas tank. They must be very careful and keep the tank cool with water so it will not explode. While they are cooling the tank, they keep moving closer until the fire officer can shut off the gas valve on the tank. After the fire is out the firefighters will slowly back up and continue to cool the tank to prevent the hot metal from igniting any left over gases. |