Which three components comprise the Fire Triangle?

Which three components comprise the Fire Triangle?

• A. Water, Foam, Ventilation.
• B. Pressure, Temperature, Humidity.
• C. Spark, Ignition Source, Fuel.
• D. Fuel, Oxygen, Heat.

Answer: (D)

Three elements must be present for a fire to continue: fuel, oxygen, and heat. Fuel is any material that can burn; oxygen in the air supports the chemical reaction; heat provides the energy to reach ignition temperature and sustain the flame. Remove any one of these and the fire cannot continue. Cooling with water lowers the heat, removing or isolating the fuel stops the supply of fuel, and reducing or sealing off the oxygen suffocates the flame. The other options describe firefighting methods or unrelated environmental factors, not the continuous requirements for combustion. The Fire Triangle is defined by these three elements working together.