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Class K fires primarily involve which of the following?

  1. Ordinary combustibles

  2. Flammable liquids

  3. Electrical equipment

  4. Cooking oils and greases

The correct answer is: Cooking oils and greases

Class K fires primarily involve cooking oils and greases, which are commonly found in commercial kitchens and food preparation areas. This classification is crucial for understanding fire safety protocols, especially in environments where deep fryers and similar cooking equipment are used. The unique properties of cooking oils and fats make them more hazardous when ignited, as they can reach very high temperatures and may cause fires to spread rapidly. Fire extinguishers rated for Class K fires contain specially formulated agents that effectively cool and smother the flames, preventing reignition. In this context, understanding the specific nature of Class K fires helps in adhering to proper safety measures and ensuring the use of the correct type of fire extinguisher in the event of an emergency. This knowledge is vital for anyone involved in the preparation and handling of food in order to maintain safety standards in the workplace.