Questions and Answers
What is Class 1 in DOT hazard classes?
Which type of hazards does Class 2 represent?
Which of the following is a characteristic of Class 3?
What does Class 4 represent?
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Class 5 includes which types of materials?
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Class 6 is related to which type of material?
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Class 7 is associated with which of the following?
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What does Class 8 focus on?
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Class 9 encompasses which types of hazards?
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Study Notes
DOT Hazard Classes Overview
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Class 1: Explosives
- Categorized by potential for explosion, with subdivisions ranging from mass explosion (1.1) to extremely insensitive materials (1.6).
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Class 2: Gases
- Divided into three categories:
- Flammable gases that ignite easily (2.1).
- Nonflammable and nonpoisonous gases (2.2).
- Poisonous gases (2.3).
- Divided into three categories:
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Class 3: Flammable Liquids
- Encompasses all flammable (3.1) and combustible liquids (3.2) that present fire hazards.
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Class 4: Flammable Solids
- Includes:
- Flammable solids like desensitized explosives and self-reacting substances (4.1).
- Spontaneously combustible materials such as pyrophoric and self-heating substances (4.2).
- Hazards of materials dangerous when in contact with water (4.3).
- Includes:
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Class 5: Oxidizers & Organic Peroxides
- Oxidizers (5.1) enhance combustion, while organic peroxides (5.2) are unstable and dangerous, especially above 73°F.
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Class 6: Poisonous Material
- Includes poisonous solids and liquids (6.1), similar to gases classified in 2.3, and infectious materials (6.2) that can cause illness.
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Class 7: Radioactive
- Encompasses materials that emit radiation and require special handling and labeling.
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Class 8: Corrosive Materials
- Defined primarily by pH level, indicating their potential to damage living tissue and materials.
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Class 9: Miscellaneous Hazards
- Covers any hazardous materials that do not fit into the other classes, ensuring all potential risks are addressed.
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Description
This quiz provides flashcards on DOT Hazard Classes, highlighting definitions and specific categories such as Explosives, Gases, and Flammable Liquids. Perfect for students or professionals needing a quick reference for dangerous materials classifications.
