Which option correctly names the NFPA fire classes and provides an example for each?

Which option correctly names the NFPA fire classes and provides an example for each?

• A. Class A (electrical equipment)
• B. Class B (cooking oils)
• C. Class C (electrical equipment)
• D. Class A (wood), Class B (gasoline), Class C (electrical equipment), Class D (magnesium), Class K (cooking oils).

Answer: (D)

NFPA fire classifications group fires by what is burning and indicate the right extinguishing approach. The complete set includes five classes: ordinary combustibles such as wood and paper (Class A); flammable liquids like gasoline (Class B); energized electrical equipment (Class C); combustible metals such as magnesium (Class D); and cooking oils and fats (Class K).

This option correctly pairs each class with a representative example: wood for Class A, gasoline for Class B, electrical equipment for Class C, magnesium for Class D, and cooking oils for Class K. It shows the full spectrum of fuel types you’d encounter and the specific class that matches each one. The other choices mix and match fuels in ways that don’t align with the standard NFPA classifications—for instance, placing cooking oils with Class A or identifying a metal like magnesium under a different class—so they don’t reflect the standard naming and examples.