Firefighter Candidate Testing Center (FCTC) Written Test Practice

A Class C fire extinguisher is specifically designed to combat electrical fires. These types of fires can occur when electrical equipment or wiring malfunctions, leading to ignition. Class C extinguishers typically use non-conductive agents, such as carbon dioxide or dry chemical substances, to effectively extinguish the flames without posing a risk of electrocution.

Using the wrong type of extinguisher can lead to dangerous situations. For instance, a Class A extinguisher, which is effective for ordinary combustibles like wood and paper, could potentially conduct electricity and create a hazardous environment if used on an electrical fire. Similarly, a Class B extinguisher, intended for flammable liquids, is not appropriate for electrical fires as the agents used might not be safe around electrical currents. Finally, Class D extinguishers are specifically designed for combustible metals and would not be effective or safe for extinquishing electrical fires. Therefore, a Class C fire extinguisher is the correct choice for safely and effectively handling electrical fires.