Hazmat: Test Questions with Complete
Answers 2026 Updated.
Explosives are what DOT hazard class? - Answer 1
miscellaneous material is what DOT hazard class? - Answer 9
Gases are what DOT hazard class? - Answer 2
Corrosives are what DOT hazard class? - Answer 8
Flammable liquids are what DOT hazard class? - Answer 3
Flammable solids are what DOT hazard class? - Answer 4
Oxidizers are what DOT hazard class? - Answer 5
Radioactive material is what DOT hazard class? - Answer 7
Toxics/Poisons are what DOT hazard class? - Answer 6
In the NFPA 704 labeling system, a rating of 3 in any quadrant corresponds to: - Answer A
moderately high hazard
A hazmat responder trained to the First Responder Operations Level is qualified to take what
actions during a hazardous materials emergency response? - Answer Defensive, confinement
actions down range from the point of release
In the EPA's Levels of Protection system, level B includes which of the following items: - Answer
Atmosphere-supplying respirator, chemical splash suit with hood, boots and gloves
In the Incident Command System, the Operations Section Chief is responsible for gathering
information about the hazardous materials involved and developing the action plan for hazmat
operations. - Answer True
Decontamination of hazmat responders happens in the Contamination Reduction Corridor
which is located in: - Answer The Warm Zone
, The BEST protective material against a specific chemical is one that has a low __________ rate
(if any) and a long __________ time: - Answer permeation, breakthrough
The proper cargo tank for carrying a shipment of sulfuric acid is a: - Answer DOT 412
Viewed from the rear, a liquid transport carrier has an elliptical shape, This shape indicates what
type of carrier? - Answer DOT 406
The weight of a pure vapor or gas compared with the weight of an equal of dry air at the same
temperature and pressure is known as vapor: - Answer density
The lowest temperature at which liquids or solid's vapor can ignite with an ignition source is
called the: - Answer Flash point
A(n)_____________has the ability to pass through human tissue and travel great distances. -
Answer Gamma ray
When dealing with a radical incident involving a leak or spill, what exposure guidlines should the
hazmat responder use to minimize radioactive exposure? - Answer Time, distance, sheilding
The individual responsible for establishing and managing the site plan, developing an
organizational structure, and allocating resources BEST describes the: - Answer Incident
Commander
The type of breathing system that CANNOT BE utilized in oxygen-deficient (<19.5%) atmosphere
is a(n): - Answer air-purifying respirator
Proper incident termination activities include debriefinf and: - Answer critiquing
A tank carrier with vapor pressures typically no more that 4 psi and designed to carry flammable
liquids and conbustible liquids is an: - Answer DOT 406
The type DOT 412 cargo tank is a small-diameter tank with reinforced external ribs that are
designed to hold: - Answer corrosive liquid tank
The highway cargo tank that carries ammonium nitrate, fertilizer, plastic pellets, and dry caustic
soda is a(n): - Answer dry bulk cargo tank
Answers 2026 Updated.
Explosives are what DOT hazard class? - Answer 1
miscellaneous material is what DOT hazard class? - Answer 9
Gases are what DOT hazard class? - Answer 2
Corrosives are what DOT hazard class? - Answer 8
Flammable liquids are what DOT hazard class? - Answer 3
Flammable solids are what DOT hazard class? - Answer 4
Oxidizers are what DOT hazard class? - Answer 5
Radioactive material is what DOT hazard class? - Answer 7
Toxics/Poisons are what DOT hazard class? - Answer 6
In the NFPA 704 labeling system, a rating of 3 in any quadrant corresponds to: - Answer A
moderately high hazard
A hazmat responder trained to the First Responder Operations Level is qualified to take what
actions during a hazardous materials emergency response? - Answer Defensive, confinement
actions down range from the point of release
In the EPA's Levels of Protection system, level B includes which of the following items: - Answer
Atmosphere-supplying respirator, chemical splash suit with hood, boots and gloves
In the Incident Command System, the Operations Section Chief is responsible for gathering
information about the hazardous materials involved and developing the action plan for hazmat
operations. - Answer True
Decontamination of hazmat responders happens in the Contamination Reduction Corridor
which is located in: - Answer The Warm Zone
, The BEST protective material against a specific chemical is one that has a low __________ rate
(if any) and a long __________ time: - Answer permeation, breakthrough
The proper cargo tank for carrying a shipment of sulfuric acid is a: - Answer DOT 412
Viewed from the rear, a liquid transport carrier has an elliptical shape, This shape indicates what
type of carrier? - Answer DOT 406
The weight of a pure vapor or gas compared with the weight of an equal of dry air at the same
temperature and pressure is known as vapor: - Answer density
The lowest temperature at which liquids or solid's vapor can ignite with an ignition source is
called the: - Answer Flash point
A(n)_____________has the ability to pass through human tissue and travel great distances. -
Answer Gamma ray
When dealing with a radical incident involving a leak or spill, what exposure guidlines should the
hazmat responder use to minimize radioactive exposure? - Answer Time, distance, sheilding
The individual responsible for establishing and managing the site plan, developing an
organizational structure, and allocating resources BEST describes the: - Answer Incident
Commander
The type of breathing system that CANNOT BE utilized in oxygen-deficient (<19.5%) atmosphere
is a(n): - Answer air-purifying respirator
Proper incident termination activities include debriefinf and: - Answer critiquing
A tank carrier with vapor pressures typically no more that 4 psi and designed to carry flammable
liquids and conbustible liquids is an: - Answer DOT 406
The type DOT 412 cargo tank is a small-diameter tank with reinforced external ribs that are
designed to hold: - Answer corrosive liquid tank
The highway cargo tank that carries ammonium nitrate, fertilizer, plastic pellets, and dry caustic
soda is a(n): - Answer dry bulk cargo tank
