🔍 Key Concepts
• Fire classes (A, B, C, D) and what type of material each class involves
• What equipment inside a radio transmitter is actually burning or energized (wiring, electronics, fuel, metals?)
• Which fire class is associated with energized electrical equipment
đź’ Think About
• Ask yourself: Is a radio transmitter mainly made of ordinary combustibles, flammable liquids, electrical components, or combustible metals?
• Think: When you are told to de-energize equipment before using some extinguishers, which class of fire are they usually talking about?
• Link each answer choice (A–D) with its definition, then match the definitions to what best describes a radio transmitter fire.
âś… Before You Answer
• Make sure you know: Class A = ordinary combustibles (wood, paper, cloth)
• Confirm which one is: Fire involving energized electrical equipment
• Verify that you are not confusing flammable liquids (fuel, oil, paint) with solid electrical/electronic equipment.