What color is associated with class 1?

Answer: B — Orange

Class 1 materials, which pertain to explosives, are associated with the color orange. This color is used as a visual identifier for hazards related to explosive substances and items, helping responders and personnel quickly recognize the potential danger in a situation involving these materials. The use of orange conveys a warning and indicates the need for caution when handling or encountering anything classified within this category. Other colors commonly used for different classes of hazardous materials carry specific meanings: for instance, red typically signifies flammable liquids (Class 3), while yellow indicates substances that can react violently or may be poisonous upon exposure (Class 6 or Class 2).