🔍 Key Concepts
• Fire classification basics: Understand what materials are involved in each class (A, B, C, D).
• Ordinary combustibles vs. flammable liquids: Know which class covers wood, paper, cloth, and similar items.
• Electrical and metal fires: Recall which classes are specifically for energized electrical equipment and combustible metals.
đź’ Think About
• What is a mattress primarily made of, and how does it usually burn—like wood/paper, fuel/oil, electrical equipment, or metal?
• Which fire class is defined by burning solids such as furniture, trash, and household items?
• If the mattress is burning by itself (not due to wiring inside it), does that change whether the fire is considered electrical or not?
âś… Before You Answer
• Review the definition of Class A fires and what typical household items fall into this category.
• Confirm what Class B fires are (think liquids and gases) and see if a mattress fits that description.
• Verify that Class C is related to energized electrical equipment and Class D to combustible metals, and check if either of those match a burning mattress.