Mesa Airline Basic Indoctrination (BI) Practice Exam

Hazardous materials are grouped by type, and Class 1 is specifically for explosives—substances or articles that can undergo a rapid chemical reaction to produce a sudden release of gas and heat, causing a blast. This category covers blasting agents, detonators, and other items designed to explode. Because of the extreme risk, shipping explosives requires strict packaging, labeling, segregation, and often special permits. The other options refer to different hazard classes (gases are Class 2, flammable liquids are Class 3, and corrosives are Class 8), each with its own unique hazards and handling rules. So the material described is classified as explosives.