The hazard class represented by the hazard placard is?

The hazard class represented by the hazard placard is?

• A. Radioactives
• B. Flammable liquids
• C. Toxic gas
• D. Corrosives

Answer: (A)

Recognizing hazard classes from placard symbols is what this question tests. A placard with the radiation trefoil symbol identifies radioactive materials, which are assigned to Class 7. That symbol is the universal warning for ionizing radiation, signaling the need for shielding, minimizing exposure, and following strict handling and deployment rules. The other hazards use different symbols—flame for flammable liquids, a corrosive symbol for corrosives, or a toxic-gas graphic for toxic substances—so those do not apply to this placard. Therefore, the correct hazard class is Radioactive.

Recognizing hazard classes from placard symbols is what this question tests. A placard with the radiation trefoil symbol identifies radioactive materials, which are assigned to Class 7. That symbol is the universal warning for ionizing radiation, signaling the need for shielding, minimizing exposure, and following strict handling and deployment rules. The other hazards use different symbols—flame for flammable liquids, a corrosive symbol for corrosives, or a toxic-gas graphic for toxic substances—so those do not apply to this placard. Therefore, the correct hazard class is Radioactive.