HAZMAT TECHNICIAN EXAM QUESTIONS
REVIEW QUESTIONS WITH COMPLETE
SOLUTIONS (LATEST 2024-2025 UPDATES)
Uninsulated Cylinder - Answer-Constructed of steel, aluminum, or fiberglass. PSI up to
420lb
Carboys - Answer-Glass, plastic, or steel containers, ranging in volume from 5 to 15
gallons.
Dewars Container - Answer-Open head, non-pressurized vacuum jacketed vessels
used for cryogenics. Range in size from 1 Liter to > 1000 Liters
Ton Container - Answer--Capacity: capability to support one ton of chlorine
-Pressure: 500-2000 psi
-Hazard class: 2
Intermediate Bulk Bags - Answer-ranges from 15-85ft
500-5,000 lbs
hazards assessment - Answer-a field of study blending physical and human geography
focusing on the perception of risk of natural hazards and on developing public policy to
mitigate that risk
risk evaluation - Answer-a determination of the acceptability of the risks or a decision
about what level of safety is desired
Incident Action Plan (IAP) - Answer-The objectives for the overall incident strategy,
tactics, risk management, and member safety that are developed by Command.
Incident action plans are updated throughout the incident.
Element - Answer-A pure substance made of only one kind of atom
Compound - Answer-A substance made up of atoms of two or more different elements
joined by chemical bonds
Mixture - Answer-A combination of two or more substances that are not chemically
combined
Solution - Answer-A mixture that forms when one substance dissolves another.
Slurry - Answer-pourable mixture of a solid an da liquid
, cryogenic liquids - Answer-substances that are in liquid stored at below -130
chemical change - Answer-A change in matter that produces one or more new
substances
Chemical interactions - Answer-Caused when two or more chemicals, or the chemical
and its container are incompatible.
ionic bond - Answer-the attraction between oppositely charged ions
covalent bond - Answer-A chemical bond formed when two atoms share electrons
organic material - Answer-substances made of chains of carbon atoms
inorganic material - Answer-material that comes from nonliving sources
Hydrocarbons - Answer-organic molecules consisting of only carbon and hydrogen
saturated hydrocarbon - Answer-A hydrocarbon with single bonds only.
unsaturated hydrocarbon - Answer-hydrocarbon with one or more double or triple bonds
aromatic hydrocarbons - Answer-hydrocarbons that contain a ring structure similar to
benzene
Halogenated Hydrocarbons - Answer-They are a subgroup of aromatic hydrocarbons, in
which one of the hydrogen molecules is substituted by a halogen group.
Sublimation - Answer-A change directly from the solid to the gaseous state without
becoming liquid
critical temperature - Answer-the temperature above which vapor cannot be liquefied no
matter what pressure is applied
Volatility - Answer-a measure of how readily a substance vaporizes
evaporation rate - Answer-the rate at which a material will vaporize
Solubility - Answer-the ability of one substance to dissolve in another
Miscibility - Answer-The degree to which two liquids can mix.
degree of solubility - Answer-how much of a solute can be dissolved in a volume of
solvent
REVIEW QUESTIONS WITH COMPLETE
SOLUTIONS (LATEST 2024-2025 UPDATES)
Uninsulated Cylinder - Answer-Constructed of steel, aluminum, or fiberglass. PSI up to
420lb
Carboys - Answer-Glass, plastic, or steel containers, ranging in volume from 5 to 15
gallons.
Dewars Container - Answer-Open head, non-pressurized vacuum jacketed vessels
used for cryogenics. Range in size from 1 Liter to > 1000 Liters
Ton Container - Answer--Capacity: capability to support one ton of chlorine
-Pressure: 500-2000 psi
-Hazard class: 2
Intermediate Bulk Bags - Answer-ranges from 15-85ft
500-5,000 lbs
hazards assessment - Answer-a field of study blending physical and human geography
focusing on the perception of risk of natural hazards and on developing public policy to
mitigate that risk
risk evaluation - Answer-a determination of the acceptability of the risks or a decision
about what level of safety is desired
Incident Action Plan (IAP) - Answer-The objectives for the overall incident strategy,
tactics, risk management, and member safety that are developed by Command.
Incident action plans are updated throughout the incident.
Element - Answer-A pure substance made of only one kind of atom
Compound - Answer-A substance made up of atoms of two or more different elements
joined by chemical bonds
Mixture - Answer-A combination of two or more substances that are not chemically
combined
Solution - Answer-A mixture that forms when one substance dissolves another.
Slurry - Answer-pourable mixture of a solid an da liquid
, cryogenic liquids - Answer-substances that are in liquid stored at below -130
chemical change - Answer-A change in matter that produces one or more new
substances
Chemical interactions - Answer-Caused when two or more chemicals, or the chemical
and its container are incompatible.
ionic bond - Answer-the attraction between oppositely charged ions
covalent bond - Answer-A chemical bond formed when two atoms share electrons
organic material - Answer-substances made of chains of carbon atoms
inorganic material - Answer-material that comes from nonliving sources
Hydrocarbons - Answer-organic molecules consisting of only carbon and hydrogen
saturated hydrocarbon - Answer-A hydrocarbon with single bonds only.
unsaturated hydrocarbon - Answer-hydrocarbon with one or more double or triple bonds
aromatic hydrocarbons - Answer-hydrocarbons that contain a ring structure similar to
benzene
Halogenated Hydrocarbons - Answer-They are a subgroup of aromatic hydrocarbons, in
which one of the hydrogen molecules is substituted by a halogen group.
Sublimation - Answer-A change directly from the solid to the gaseous state without
becoming liquid
critical temperature - Answer-the temperature above which vapor cannot be liquefied no
matter what pressure is applied
Volatility - Answer-a measure of how readily a substance vaporizes
evaporation rate - Answer-the rate at which a material will vaporize
Solubility - Answer-the ability of one substance to dissolve in another
Miscibility - Answer-The degree to which two liquids can mix.
degree of solubility - Answer-how much of a solute can be dissolved in a volume of
solvent
