🔍 Key Concepts

• fire classification system (Classes A, B, C, D, K) • difference between ordinary combustibles, flammable liquids, and energized electrical equipment • what happens to an electrical fire classification if the power is secured

💭 Think About

• First, match each answer choice to the general type of material (ordinary combustible, flammable liquid, plastic-like, energized electrical). Which one stands out as different? • Think about why one specific fire class is unsafe to attack with water due to shock hazard. Which type of material would cause that danger? • Consider what happens when power to electrical equipment is shut off—does the fire class stay the same or change to another class?

✅ Before You Answer

• Be sure you know that Class A is associated with ordinary combustibles like wood, paper, cloth. • Verify which class covers flammable liquids such as fuel oil and gasoline. • Confirm which fire class is defined by energized electrical equipment, not by what is physically burning.