Question 684 Deck Safety

The correct answer is A) cool fuel below ignition temperature. Class A fires involve ordinary combustible materials like wood, paper, cloth, or plastics. To extinguish these fires, the best method is to cool the fuel below its ignition temperature, which stops the chemical reaction that sustains the fire. This is typically done by applying water, which absorbs heat from the burning materials. The other options are not the best methods for Class A fires. Smothering with foam or CO2 may work, but they are less effective than cooling the fuel. Removing oxygen from the area can also work, but this is more difficult to achieve compared to simply cooling the fuel.