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Practice quizzes / Ohio CDL Hazmat Practice Questions - Ohio CDL Hazardous Materials Endorsement Test Exam / Question 158545
Practice question

What does Class 4 include?

  1. Flammable solids, spontaneously combustible materials, and dangerous-when-wet materials
  2. Flammable liquids only
  3. Radioactive materials only
  4. Corrosive gases only

Answer: A — Flammable solids, spontaneously combustible materials, and dangerous-when-wet materials

The correct answer is shown above. Try the full quiz for additional practice.

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