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IFSTA CHAPTER 24 TEST QUESTIONS
WITH CORRECT ANSWERS 2026
In North America, the U.N.'s Transportation of Dangerous Goods
- Model Regulations is the basis of: - correct answer-the
placarding, labeling, and marking system used to identify
hazardous materials during transportation.
Which marine vessels may serve as floating warehouses with
hazardous goods, vehicles, or rail cars inside? - correct answer-
Barges
The three mechanisms or harm in a container hazardous
materials incident are: - correct answer-energy release,
corrosivity, and toxicity.
In Step 4 of the APIE process, responders: - correct answer-
monitor progress to see whether the response plan is working,
and continue throughout the incident.
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Liquid oxygen (LOX), nitrogen, helium, hydrogen, argon, and
liquefied natural gas (LNG) are examples of: - correct answer-
cryogens
In which type of occupancy are first responders MOST likely to
find supplies of anhydrous ammonia? - correct answer-Farms
Which type of ionizing radiation consists of high-energy photons?
- correct answer-Gamma
Materials with very little radioactivity that present no risk to the
public should be shipped using what type of packaging? - correct
answer-Excepted
Most hazmat incidents, such as gasoline and diesel fuel spills,
involve what hazard class? - correct answer-Class 3
In the U.N. system, hazard classes are divided into: - correct
answer-nine classes that include gases, infectious substances,
and miscellaneous.
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A boiling liquid expanding vapor explosion (BLEVE) is caused by:
- correct answer-a heated liquid or gas expanding.
In addition to burning, all flammable and combustible liquids
exhibit varying degrees of: - correct answer-toxicity.
Which method of detecting the presence of hazardous materials
would pose the least risk for a first responder? - correct answer-
Referring to a preincident survey of the facility
Locations such as ports, docks, railroad sidings, airplane hangars,
and truck terminals: - correct answer-are likely locations for
hazmat incidents.
The damaging effects of ionizing radiation occur at the _____
level. - correct answer-cellular
Small airborne particles of solid substances such as grain, flour,
sugar, coal, metal, or sawdust: - correct answer-can ignite or
explode.
IFSTA CHAPTER 24 TEST QUESTIONS
WITH CORRECT ANSWERS 2026
In North America, the U.N.'s Transportation of Dangerous Goods
- Model Regulations is the basis of: - correct answer-the
placarding, labeling, and marking system used to identify
hazardous materials during transportation.
Which marine vessels may serve as floating warehouses with
hazardous goods, vehicles, or rail cars inside? - correct answer-
Barges
The three mechanisms or harm in a container hazardous
materials incident are: - correct answer-energy release,
corrosivity, and toxicity.
In Step 4 of the APIE process, responders: - correct answer-
monitor progress to see whether the response plan is working,
and continue throughout the incident.
, Page | 2
Liquid oxygen (LOX), nitrogen, helium, hydrogen, argon, and
liquefied natural gas (LNG) are examples of: - correct answer-
cryogens
In which type of occupancy are first responders MOST likely to
find supplies of anhydrous ammonia? - correct answer-Farms
Which type of ionizing radiation consists of high-energy photons?
- correct answer-Gamma
Materials with very little radioactivity that present no risk to the
public should be shipped using what type of packaging? - correct
answer-Excepted
Most hazmat incidents, such as gasoline and diesel fuel spills,
involve what hazard class? - correct answer-Class 3
In the U.N. system, hazard classes are divided into: - correct
answer-nine classes that include gases, infectious substances,
and miscellaneous.
, Page | 3
A boiling liquid expanding vapor explosion (BLEVE) is caused by:
- correct answer-a heated liquid or gas expanding.
In addition to burning, all flammable and combustible liquids
exhibit varying degrees of: - correct answer-toxicity.
Which method of detecting the presence of hazardous materials
would pose the least risk for a first responder? - correct answer-
Referring to a preincident survey of the facility
Locations such as ports, docks, railroad sidings, airplane hangars,
and truck terminals: - correct answer-are likely locations for
hazmat incidents.
The damaging effects of ionizing radiation occur at the _____
level. - correct answer-cellular
Small airborne particles of solid substances such as grain, flour,
sugar, coal, metal, or sawdust: - correct answer-can ignite or
explode.
