Hazmat Tech Definitions, Questions & Answers. 100% Accurate. Latest Update.
Technician level personnel defined IAW the National Fire Protection Agency (NFPA) - -The hazardous materials technician shall be that
person who responds to hazardous materials/WMD incidents using a risk-based respons...
Technician level personnel defined IAW the National Fire Protection Agency (NFPA) - ✔✔-The hazardous
materials technician shall be that
person who responds to hazardous materials/WMD incidents using a risk-based response process to
analyze a problem involving hazardous materials/WMD, plan a response to the problem, implement the
planned response, evaluate progress of the planned response and accordingly, and assist in terminating
the incident.
Microorganisms, such as viruses or bacteria (or their toxins), that may cause severe, disabling disease or
illness.
Many of these hazards can be transferred from the blood or other bodily fluids of an infected individual.
- ✔✔-Biological Hazards (Etiological)
-Materials that destroy living tissue and damage or destroy metal.
- Commonly divided into two broad categories.
- pH measures the acidity or
alkalinity of a solution.
-Acids (0-6)
Neutral (7)
-Bases (8-14) - ✔✔-Corrosivity Hazards
What are the energy hazards? - ✔✔-Explosivity, reactivity, radioactivity
Its relative ability to undergo a chemical REACTION with itself or other materials. - ✔✔-Reactivity
,Any substance or article with a great deal of potential energy that may rapidly expand and release upon
activation (undergo an explosion). - ✔✔-Explosivity
- Radiation comes in different forms, some more energetic than others.
- The least energetic form of radiation is nonionizing radiation such as visible light and radio waves.
- The most energetic (and hazardous) form of radiation is ionizing radiation. - ✔✔-Radioactivity
Fuels susceptibility to ignition. - ✔✔-Flammability
Oxygen meters detect the percentage of oxygen in the air. - ✔✔-Oxygen Concentration
What are the two thermal hazards? - ✔✔-Heat, cold
-Hazardous material can cause temperature extremes.
-Fires, explosions involving flammable liquids, explosive materials can cause burns. - ✔✔-Heat
-Lack of heat can also cause harm; cryogenic liquids, liquefied gases are so cold that if contacted, they
can cause damage, injuries.
-Cold atmospheric temperatures can complicate many hazmat operations. - ✔✔-Cold
Chemicals or biological substances that cause sickness, illness, or injury by doing damage on the
molecular scale when in contact with body are considered toxic. - ✔✔-Toxicity
Will usually not travel far unless blown by wind or dispersed by explosion.
Responders will typically be sufficiently protected when using firefighter protective equipment with
SCBA or level C PPE for monitoring and sampling activities. - ✔✔-Hazardous solids
, May
- Vaporize.
- Expand rapidly.
- Potentially travel great distances.
- Fill low-level and confined spaces.
- Before engaging in detection and monitoring activities, responders at liquid releases may need to don
the most protective levels of respiratory and chemical protective equipment. - ✔✔-Hazardous liquids
Expand rapidly
Fill enclosed spaces
Potentially travel great distances from their source. - ✔✔-Hazardous gases
Can damage and penetrate firefighter protective clothing and SCBA. - ✔✔-Corrosive gases
Can kill quickly if inhaled - ✔✔-Toxic gases
Present an extreme fire hazard - ✔✔-Flammable gases
Can cause explosions - ✔✔-Oxidizing gases
Can DISPLACE OXYGEN levels in enclosed spaces causing an asphyxiation hazard. - ✔✔-Inert gases
Some instruments will DETECT lower concentrations than others, while others will only DETECT very
specific materials.
Responders must consider how well the instrument will detect the desired chemical or chemical family
and to what degree. - ✔✔-Sensitivity and selectivity
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