Page 1 of 41
IFSTA HAZMAT 6TH EDITION CHAPTERS 1-3
EXAM NEWEST 2026 ACTUAL EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {90 Q & A} ALREADY GRADED A+ |
BRAND NEW! | 100% GUARANTEED PASS
Class 1 - Explosives - ✔✔✔ Correct Answer > - An explosive is any
substance or article with a significant potential energy that may
rapidly expand and release upon activation
- Responders should pay particular attention to the division
number, which assigns the level of explosion hazard
- Explosive placards are the only hazard class with compatibility
group letters, which specify the controls for the transportation,
separation, and storage of explosives
- Will typically be packaged as solids in individual packages or
boxes
- However, some explosives are liquids such as certain binary
explosives
- The primary hazards of explosives are thermal and mechanical
- Chemical hazards will probably result from the production of
toxic gases and vapors
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- Explosives may self-contaminate as they age, increasing their
sensitivity and instability
- Explosives may have a high sensitivity to shock and friction
Class 2 - Gases - ✔✔✔ Correct Answer > - Transported or stored in
pressure containers or cryogenic liquid storage tanks
- Gas division numbers are assigned according to the type of
hazard gases pose
- The potential hazards include energy (flammability or oxidizer),
toxicity, and corrosivity
- A BLEVE is a mechanical hazard associated with gases
Class 3 - Flammable liquids - ✔✔✔ Correct Answer > - Includes
combustible liquids in the US
- All flammable and combustible liquids exhibit varying degrees
of toxicity
- May give off hazardous vapors
- Primary hazards are chemical energy, corrosivity, and toxicity
Class 4 - Flammable solids - ✔✔✔ Correct Answer > - Include
flammable solids, spontaneously combustible liquids, and
dangerous when wet substances
- Spontaneously combustible materials may be liquids or solids
that can ignite within 5 minutes after coming in contact with air
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- Dangerous when wet substances become spontaneously
flammable or give off flammable or toxic gas when in contact
with water
Class 5 - Oxidizing substances and organic peroxides - ✔✔✔ Correct
Answer > - Oxidizing materials are liquids or solids that readily give
off oxygen or other oxidizing substances
- Oxidizers vigorously support combustion, may be explosive,
and when combine with fuel, may burn continuously
- Organic peroxides are oxidizers with a specific chemical
composition that make them prone to reactivity
- When these materials are involved in an incident, only a small
amount of heat, friction, or pressure is needed to start a fire or
explosion
- Organic peroxides are both a fuel and an oxidizer
- Should be stored below the maximum safe storage
temperature
- If organic peroxides reach the self-accelerating decomposition
temperature, they undergo a chemical change and violently
release from their packaging
Class 6 - Toxic and infectious substances - ✔✔✔ Correct Answer > -
Include poisons and infectious substances
- Include viable microorganisms or toxins that can cause severe,
disabling, or fatal disease in humans or animals
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- Typically shipped in small containers, so there is no placard for
them, only a label
Class 7 - Radioactive materials - ✔✔✔ Correct Answer > - Cannot be
detected with the senses
- The primary hazards are radiation burns, illnesses, cancer, and
fire that may produce irritating or poisonous gases
- When labelling of the radioactive materials package is required,
it must be labeled on two opposite sides
- Three categories - Radioactive I, II, and III
- Also FISSILE label
- These labels must always contain:
- The isotope name
- Radioactive activity in SI units of becquerels (Bq)
- Transportation index (for Yellow II and Yellow III packages)
- The Transport Index (TI) indicates the carrier's degree of
control during transportation
Class 8 - Corrosive substances - ✔✔✔ Correct Answer > - Either a
liquid or solid that causes full thickness destruction of human
skin at the site of contact within a specific period of time, or a
liquid that has a severe corrosion rate on steel or aluminum
- Some can generate enough heat to start a fire when in contact
with other materials
IFSTA HAZMAT 6TH EDITION CHAPTERS 1-3
EXAM NEWEST 2026 ACTUAL EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {90 Q & A} ALREADY GRADED A+ |
BRAND NEW! | 100% GUARANTEED PASS
Class 1 - Explosives - ✔✔✔ Correct Answer > - An explosive is any
substance or article with a significant potential energy that may
rapidly expand and release upon activation
- Responders should pay particular attention to the division
number, which assigns the level of explosion hazard
- Explosive placards are the only hazard class with compatibility
group letters, which specify the controls for the transportation,
separation, and storage of explosives
- Will typically be packaged as solids in individual packages or
boxes
- However, some explosives are liquids such as certain binary
explosives
- The primary hazards of explosives are thermal and mechanical
- Chemical hazards will probably result from the production of
toxic gases and vapors
,Page 2 of 41
- Explosives may self-contaminate as they age, increasing their
sensitivity and instability
- Explosives may have a high sensitivity to shock and friction
Class 2 - Gases - ✔✔✔ Correct Answer > - Transported or stored in
pressure containers or cryogenic liquid storage tanks
- Gas division numbers are assigned according to the type of
hazard gases pose
- The potential hazards include energy (flammability or oxidizer),
toxicity, and corrosivity
- A BLEVE is a mechanical hazard associated with gases
Class 3 - Flammable liquids - ✔✔✔ Correct Answer > - Includes
combustible liquids in the US
- All flammable and combustible liquids exhibit varying degrees
of toxicity
- May give off hazardous vapors
- Primary hazards are chemical energy, corrosivity, and toxicity
Class 4 - Flammable solids - ✔✔✔ Correct Answer > - Include
flammable solids, spontaneously combustible liquids, and
dangerous when wet substances
- Spontaneously combustible materials may be liquids or solids
that can ignite within 5 minutes after coming in contact with air
,Page 3 of 41
- Dangerous when wet substances become spontaneously
flammable or give off flammable or toxic gas when in contact
with water
Class 5 - Oxidizing substances and organic peroxides - ✔✔✔ Correct
Answer > - Oxidizing materials are liquids or solids that readily give
off oxygen or other oxidizing substances
- Oxidizers vigorously support combustion, may be explosive,
and when combine with fuel, may burn continuously
- Organic peroxides are oxidizers with a specific chemical
composition that make them prone to reactivity
- When these materials are involved in an incident, only a small
amount of heat, friction, or pressure is needed to start a fire or
explosion
- Organic peroxides are both a fuel and an oxidizer
- Should be stored below the maximum safe storage
temperature
- If organic peroxides reach the self-accelerating decomposition
temperature, they undergo a chemical change and violently
release from their packaging
Class 6 - Toxic and infectious substances - ✔✔✔ Correct Answer > -
Include poisons and infectious substances
- Include viable microorganisms or toxins that can cause severe,
disabling, or fatal disease in humans or animals
, Page 4 of 41
- Typically shipped in small containers, so there is no placard for
them, only a label
Class 7 - Radioactive materials - ✔✔✔ Correct Answer > - Cannot be
detected with the senses
- The primary hazards are radiation burns, illnesses, cancer, and
fire that may produce irritating or poisonous gases
- When labelling of the radioactive materials package is required,
it must be labeled on two opposite sides
- Three categories - Radioactive I, II, and III
- Also FISSILE label
- These labels must always contain:
- The isotope name
- Radioactive activity in SI units of becquerels (Bq)
- Transportation index (for Yellow II and Yellow III packages)
- The Transport Index (TI) indicates the carrier's degree of
control during transportation
Class 8 - Corrosive substances - ✔✔✔ Correct Answer > - Either a
liquid or solid that causes full thickness destruction of human
skin at the site of contact within a specific period of time, or a
liquid that has a severe corrosion rate on steel or aluminum
- Some can generate enough heat to start a fire when in contact
with other materials
