π Key Concepts
β’ The fire classification system (Class A, B, C, D, K) and what each class represents
β’ The difference between ordinary combustibles, flammable liquids, and combustible metals
β’ Typical examples used on U.S. Coast Guard exams for Class B fires
π Think About
β’ First, match each answer choice (paper, diesel oil, wood, magnesium) to the type of material it is (solid combustible, liquid fuel, metal, etc.).
β’ Recall which fire class is associated specifically with flammable and combustible liquids.
β’ Think about what type of portable fire extinguisher (by class letter) you would normally use on something like fuel or oil fires on a vessel.
β
Before You Answer
β’ Verify which fire class is defined as involving flammable or combustible liquids and gases.
β’ Confirm which of the listed materials is normally found in liquid form and used as a fuel on vessels.
β’ Eliminate the materials that clearly match Class A (ordinary combustibles) and Class D (combustible metals) before deciding.