DOT Hazard Class 7 consists of which type?

DOT Hazard Class 7 consists of which type?

• A. Radioactive substances
• B. Flammable liquids
• C. Oxidizers
• D. Poisons

Answer: (A)

Understanding hazmat classifications: Each material is assigned a hazard class number by the DOT to indicate the primary danger. Class 7 designates radioactive materials. These are substances that emit ionizing radiation and require special packaging, labeling, and handling due to exposure risks. This includes sealed radioactive sources, medical isotopes, and certain nuclear materials. The reason this is the best answer is because the question is asking which type falls under Hazard Class 7; only radioactive materials fit that category. Flammable liquids are classified as Class 3, oxidizers as Class 5.1, and poisons as Class 6, so they don’t match Class 7’s focus on radioactivity.

Understanding hazmat classifications: Each material is assigned a hazard class number by the DOT to indicate the primary danger. Class 7 designates radioactive materials. These are substances that emit ionizing radiation and require special packaging, labeling, and handling due to exposure risks. This includes sealed radioactive sources, medical isotopes, and certain nuclear materials. The reason this is the best answer is because the question is asking which type falls under Hazard Class 7; only radioactive materials fit that category. Flammable liquids are classified as Class 3, oxidizers as Class 5.1, and poisons as Class 6, so they don’t match Class 7’s focus on radioactivity.