Hazardous Materials Class 4 includes which category?

Prepare for the Mesa Airline Basic Indoctrination Exam. Enhance your skills with flashcards and multiple-choice questions. Each question includes hints and explanations for better understanding. Ace your exam with confidence!

Multiple Choice

Hazardous Materials Class 4 includes which category?

Explanation:
Class 4 is the group for materials that are flammable in solid form, and it includes three divisions: flammable solids, substances that are spontaneously combustible, and substances that emit flammable gases when in contact with water. The category that sits under Class 4 is Flammable Solid, which is why that choice is correct. The other options refer to different hazard classes—Explosives belong to Class 1, Gases to Class 2, and oxidizers are typically Class 5.1.

Class 4 is the group for materials that are flammable in solid form, and it includes three divisions: flammable solids, substances that are spontaneously combustible, and substances that emit flammable gases when in contact with water. The category that sits under Class 4 is Flammable Solid, which is why that choice is correct. The other options refer to different hazard classes—Explosives belong to Class 1, Gases to Class 2, and oxidizers are typically Class 5.1.

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