Certified Logistics Associate (CLA) Practice Test 2025 - Free CLA Practice Questions and Study Aid.

The class of fire extinguisher used to fight grease and oil fires is classified as Class B. This type of extinguisher is specifically designed to handle fires involving flammable liquids such as oil, gasoline, and grease, which are common in kitchens and industries dealing with such materials.

Class B extinguishers work by using certain agents that can effectively smother the flames or remove the heat necessary for the fire to continue burning. These extinguishers typically contain substances like foam, carbon dioxide, or dry chemical agents that are suitable for suppressing liquid fires without causing further risk of ignition.

Understanding the different classes of fire extinguishers is crucial for safe and effective fire response. Class A extinguishers are meant for ordinary combustibles like wood and paper, Class C for electrical fires, and Class D for combustible metals, each serving distinct purposes based on the nature of the fire. Knowing that Class B is the correct choice reinforces the importance of having the right type of extinguisher readily available in environments where flammable liquids are present.