Hazmat 1 Flashcards
In Step 2 of the APIE process, responders:
use the information gathered to determine what actions need to be taken to mitigate the incident.
Hazardous materials or dangerous goods are:
substances that possess harmful characteristics.
Acute health effects are:
short-term effects that appear within hours or days.
A chronic exposure to a hazardous material is:
long-term or reoccurring.
The process of taking in hazardous materials through the skin or eyes is defined as:
absorption.
Chemicals or biological substances that cause sickness, illness, or injury by doing damage on the molecular scale are an example of:
toxicity.
Fires and explosions are examples of:
energy release.
Which statement about gases is most accurate?
Gases have an undefined shape and keep expanding if uncontained.
The conversion of a liquid to vapor:
increases the material’s mobility.
Sublimation occurs when a material transitions directly from a:
solid to a gas.
What is the pressure exerted by a saturated vapor above its own liquid in a closed container?
Vapor pressure
Liquid changes to a gas at the point.
boiling
A boiling liquid expanding vapor explosion (BLEVE) is caused by:
a heated liquid or gas expanding.
Gases with a vapor density of____will rise quickly and spread to a wide geographical area.
less than one
Most fammable liquids will float on water because they have
specific gravities less than one.
The concentration (in air) at which the “average person” can smell a particular compound is the:
odor threshold!
A fuel that has moved beyond its upper flammable limit will:
be too rich to burn.
The most energetic and hazardous forms of radiation are:
visible light.
Which type of radiation can be reduced or stopped by a layer of clothing, a thin sheet of metal, or a thick Plexiglass?
Beta
The damaging effects of ionizing radiation occur at the_____ level
cellular
Asphyxiants, irritants, convulsants, and carcinogens are types of:
toxics.
Which type of biological/etiological hazard spreads mostly through the bite of infected arthropods?
Rickettsias
Visible corrosion, or other degradation of a container, may indicate that a container is undergoing____ energy
chemical
The three mechanisms or harm in a container hazardous materials incident are:
energy release, corrosivity, and toxicity.
Locations such as ports, docks, railroad sidings, airplane hangars, and truck terminals:
are likely locations for hazmat incidents.
Which is considered to be a nonbulk container?
Drum
Liquid containers tend to have:
flat (or less rounded) ends on tanks.
Materials with very little radioactivity that present no risk to the public should be shipped using what type of packaging?
Excepted
In the U.N. system, hazard classes are divided into:
nine classes that include gases, infectious substances, and miscellaneous.
Which class of hazards is characterized by thermal and mechanical hazards in the form of blast pressure waves, shrapnel and fragmentation, and incendiary thermal effects?
Class 1
In addition to burning, all flammable and combustible liquids exhibit varying degrees of.
toxicity.
Biohazards such as infectious substances are part of which hazardous class?
Class 6
NFPA 704, Standard System for the Identification of the Hazards of Materials for Emergency Response gives widely recognized methods for indicating the presence of hazardous materials:
at commercial, manufacturing, institutional, or other fixed-storage facilities.
In the NEPA 704 System, what does a “4” in the yellow background indicate?
Severe instability
Which is NOT included on pesticide labels in the U.S. and Canada?
U.N. four-digit identification number
Safety data sheets:
are often the best source of information about a particular material to which emergency responders have access.
