Which type of HAZMAT is characterized by its ability to ignite easily?

The correct answer is flammables because this category of hazardous materials is specifically defined by its propensity to easily ignite and sustain combustion. Flammables commonly include liquids, solids, or gases that can catch fire at relatively low temperatures, presenting significant risks in terms of fire and explosion hazards.

Understanding the characteristics of flammables is crucial for aviation structural mechanics, as handling and storage requirements differ significantly from those of other hazardous materials. Flammable substances are typically governed by strict safety regulations to prevent accidental ignition, emphasizing the importance of proper labeling, storage, and handling procedures to ensure safety in aviation environments.

In contrast, corrosives are materials that can damage or destroy living tissue or severe corrosion of materials through chemical action, rather than igniting easily. Toxic substances can cause health risks upon exposure but do not necessarily have flammable properties. Compressed gases may present ignition risks, but their primary hazards revolve around pressure, potential explosiveness, and the risk of asphyxiation rather than flammability.