IFSTA Hazardous Materials for First Responders Fifth Edition Chapter 4 2023/2024 already passed

IFSTA Hazardous Materials for First Responders Fifth Edition Chapter 43 states of matter - correct answer Gas, liquid, solid, Gas - correct answer Fluid that has neither independent shape nor volume, gases tend to expand indefinitely Liquid - correct answer Fluid that has no independent shape but does have a specific volume. Liquids flow in accordance with laws of gravity Solid - correct answer Substance that has both a specific shape without a container + volume Difficult if not possible to contain for mitigation purposes & will move according to prevailing wind & air movement - correct answer Gases Compressed gases will expand rapidly when released - correct answer Potentially threatening large areas This will flow or pool according to surface contours & topography, providing opportunities for containment or confinement, naked wallpapers that become inhalation hazards, is primarily a splash or contact hazard. - correct answer Liquids May be moved by exterior forces (wind, water, gravity, etc) but will typically remain in place unless acted upon. Particle size such as dust, fumes, or powders may influence their behavior, example, how long particles may remain suspended in air. Larger particles will settle out more quickly. - correct answer Solids Air contaminants are commonly classified as either - correct answer Particulate or gas and vapor contaminants