Which statement about the classes of fire is NOT true based on the list?

Which statement about the classes of fire is NOT true based on the list?

• A. Class A is listed
• B. Class B is listed
• C. Class C is listed
• D. Class D is listed

Answer: (D)

The concept being tested is which fire classes appear on standard extinguisher labeling. Fire classifications commonly shown on portable extinguishers are A (ordinary combustibles), B (flammable liquids), and C (electrical fires). Class D is for metal fires and is included only in more specialized contexts. If the given list includes A, B, and C but omits D, the statement that Class D is listed would not be true for that list. That’s why the option claiming Class D is listed is incorrect in this context.

The concept being tested is which fire classes appear on standard extinguisher labeling. Fire classifications commonly shown on portable extinguishers are A (ordinary combustibles), B (flammable liquids), and C (electrical fires). Class D is for metal fires and is included only in more specialized contexts. If the given list includes A, B, and C but omits D, the statement that Class D is listed would not be true for that list. That’s why the option claiming Class D is listed is incorrect in this context.