What type of fire would most likely produce blue or white smoke?

Blue or white smoke is most commonly associated with Class Charlie fires, which involve electrical equipment. When electrical fires occur, the combustion of plastics and other materials in electrical components can produce smoke that appears blue or white due to the burning insulation or other materials that are part of the equipment.

Additionally, the characteristics of this type of fire often result in low-burning temperatures compared to other classes, which influences the coloration of the smoke produced. Understanding this provides an important identification method for fire types—asserting a trained individual's response and safety measures to be taken during such occurrences.

Class Alpha, Bravo, and Delta fires involve different materials such as wood, flammable liquids, and metals, respectively, which typically produce different types of smoke, usually darker in color. This further emphasizes why blue or white smoke is a clear indicator of an electrical fire, making it crucial for boat crew members to recognize and respond appropriately.