Which set of fire extinguisher classes is listed in the material?

Which set of fire extinguisher classes is listed in the material?

• A. Class A, B, C, D, K
• B. Class A, B, C, D
• C. Class B, C, D, E
• D. Class 1, 2, 3, 4

Answer: (A)

The concept tested is matching fire extinguisher classifications to the fire types they’re designed to fight. The material lists five valid classes: ordinary combustibles, flammable liquids, electrical equipment, combustible metals, and cooking fats/oils. So the correct set is the one that includes all five of these categories. Why this one fits best: it reflects the complete range of standard extinguisher classifications acknowledged in safety material, ensuring coverage for common worst-case scenarios in many environments (homes, businesses, kitchens, workshops). Why the other options don’t fit: one alternative omits the kitchen/oil fire class, leaving out a common hazard; another includes a non-existent class; and yet another uses incorrect numbering altogether, which doesn’t correspond to standard extinguisher classifications.

The concept tested is matching fire extinguisher classifications to the fire types they’re designed to fight. The material lists five valid classes: ordinary combustibles, flammable liquids, electrical equipment, combustible metals, and cooking fats/oils. So the correct set is the one that includes all five of these categories.

Why this one fits best: it reflects the complete range of standard extinguisher classifications acknowledged in safety material, ensuring coverage for common worst-case scenarios in many environments (homes, businesses, kitchens, workshops).

Why the other options don’t fit: one alternative omits the kitchen/oil fire class, leaving out a common hazard; another includes a non-existent class; and yet another uses incorrect numbering altogether, which doesn’t correspond to standard extinguisher classifications.