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2024 FIREFIGHTER HAZMAT OPS EXAM FINAL EXAM LATEST 4 VERSIONS QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A
Identify the THREE items that an Operations level responder must protect when responding to a release or potential release of a
hazardous material. - CORRECT ANSWER 1. Nearby people
- Environment
- Reports about the incident Industrial packages are designed to transport radioactive materials
with: - CORRECT ANSWER Low concentrations, that are considered
to be a limited threat to the public, and packaged in glass or concrete. You're driving alongside the railroad tracks and see a tank car with a white body and two red vertical bands. A label on the tank reads
"HIGHLY TOXIC." You have just seen a: - CORRECT ANSWER
Pressure railway tank car Strong, tight packages are designed to transport radioactive materials
with: - CORRECT ANSWER Low radioactivity such as natural uranium
and rubble from nuclear reactors and packaged in steel, wood, or fiberboard Intermodal equipment, including tank containers will have all of the
markings below EXCEPT: - CORRECT ANSWER A three-letter
abbreviation for the owner, followed by an "X" and numbers
As you survey an incident, you DO NOT need to consider: - CORRECT
ANSWER Drainage capacity
CHEMTREC has access to all of the following resources EXCEPT the: -
CORRECT ANSWER Chemical Mixers Association
Information about the role of local, state, and Federal authorities
during hazardous materials emergencies can be found: - CORRECT
ANSWER In the local emergency response plan
FIREFIGHTER HAZMAT OPERATIONS: COMPREHENSIVE
FINAL EXAM GUIDE (LATEST 4 VERSION QUESTIONS
AND ANSWERS)
2026 EDITION
You are at a HazMat incident that you suspect involves criminal or terrorist activity. There are munitions involved and you need an Explosives Ordinance Disposal team to respond to the scene. The
agency that can help you with this is the: - CORRECT ANSWER U.S.
Army Operations Center A material's flash point is the primary characteristic used to determine
its relative degree of: - CORRECT ANSWER Flammability
When radioactive contamination occurs and the person is removed
from the endangered area: - CORRECT ANSWER The contaminated
material ingested or inhaled continues to emit radiation A chemical inside a container has come into contact with an incompatible substance and is now degrading its own container. When Responder Watson describes the situation to CHEMTREC, Watson
refers to: - CORRECT ANSWER Chemical Stress
The type of release that is associated with runaway cracking is: -
CORRECT ANSWER Violent rupture
A material that is not necessarily toxic but can cause unconsciousness and death by displacing or depriving oxygen is
known as a(n): - CORRECT ANSWER Asphyxiant
Exposure to a high dose of radiation for a short time is considered: -
CORRECT ANSWER Acute
If the intensity of the incident increases and could pose an unreasonable threat to the responders at the scene, the responders
should: - CORRECT ANSWER Pull back from the rescue effort
To find out the distances for evacuation at a HazMat incident, use the Emergency Response Guidebook to determine the size of the
endangered area. Another way to find out would be to: - CORRECT
ANSWER Contact CHEMTREC
- Results of monitoring and sampling Responders Costas and Lopez are performing emergency decontamination at a HazMat incident. After removing the victim from
the contaminated area they should: - CORRECT ANSWER
Immediately wash any exposed body parts with flooding quantities of water The purpose of the Operations level goal, "implement the planned
response," is to: - CORRECT ANSWER Favorably change outcomes
while making sure they are consistent with local emergency response plans and the organization's standard operating procedures
A common hazard with dry bulk cargo tanks is: - CORRECT ANSWER
Static Charges
MC-306/DOT- 406 - CORRECT ANSWER Alcohol
MC-312/DOT- 412 - CORRECT ANSWER Corrosive Liquids
MC- 331 - CORRECT ANSWER LP Gasses
MC- 338 - CORRECT ANSWER Liquid Nitrogen
At an incident at a fixed facility, you notice a product name and an identification number stenciled on the container. The ID number
should relate to the: - CORRECT ANSWER Site Plan
Using the U.N. hazard class system, materials other than gas that are either known to be so toxic to humans as to afford a hazard to health during transport, OR in the absence of adequate data on human toxicity are presumed to be toxic to humans, would fall under: -
CORRECT ANSWER 6.
At a site, your binoculars aren't strong enough to read the numbers on the placard, but you do see a yellow and white placard with a trefoil
icon. These materials are probably from: - CORRECT ANSWER Class
Once you have contacted CHEMTREC: - CORRECT ANSWER
CHEMTREC will have the shipper or manufacturer call you
Contamination occurs when: - CORRECT ANSWER Exposures exceed
intended limits and radioactive material is transferred to people, animals, or the environment All the following statements are true about nonionizing radiation
EXCEPT: - CORRECT ANSWER C. It cannot cause tissue damage
Identify FOUR examples of ionizing radiation. - CORRECT ANSWER 1.
X-Rays
- Gama Rays
- Alpha Particles
- Beta Particles The factors that influence harm include all of the following EXCEPT: -
CORRECT ANSWER Time of Day
Identify the TWO signs and symptoms of exposure to a substance whose agents have decreased hemoglobin in the blood function. -
CORRECT ANSWER 1. Cyanosis
- Loss of Consciousness
A sensitizer is a material that: - CORRECT ANSWER Causes most
people to have a reaction after repeated exposure to the material
Produces Kidney Damage - CORRECT ANSWER Nephrotoxin
Produces Liver Damage - CORRECT ANSWER Hepatotoxin
Toxic effect on nervous system - CORRECT ANSWER Neurotoxin
Identify TWO defensive response actions Operations level responders may initiate for protecting the public from a HazMat/WMD incident. -
CORRECT ANSWER 1. Evacuation
- Sheltering in Place
Identify THREE items found in the EXPOSURE CONTROLS/PERSONAL
PROTECTION section of an SDS - CORRECT ANSWER Threshold limit
values, Personal protective equipment, Appropriate engineering controls The U.N. hazard class division for the choking agent phosgene is -
CORRECT ANSWER 2.
Identify THREE ways in which you can identify materials stored at
fixed facilities. - CORRECT ANSWER - Labeling or markings
- NFPA 704 symbol
- pre-emergency plan Identify the THREE sources that can be used to verify information
obtained during a survey of a HazMat incident in the U.S. - CORRECT
ANSWER - Electronic databses
- CHEMTREC
- ERG
A short term contamination usually lasts: - CORRECT ANSWER
Minutes and Hours Identify FOUR resources that an Operations level responder has available for use when determining the concentrations of a released
hazardous material within an endangered area. - CORRECT ANSWER
- Adjacent Fire Departments
- Environmental Agencies
- Regional Hazmat Response Teams
- Health and Industrial hygene groups a ______ is best defined as a tank-within-a-tank with a stainless steel inner tank supported within a strong outer tank, with insulation in the space between the inner and outer tank A. low-pressure tnak car B. cryogenic liquid tank C. pressure tank car
D. non pressure tank car without an expansion dome - CORRECT
ANSWER B. cryogenic liquid tank
A railcar tanker with a stencil marking oof DOT 111 is a(n) A. covered floating roof tank B. non-pressurized railcar C. MC 306
D. cryogenic storage car - CORRECT ANSWER B. non-pressurized
railcar a specialized intermodal tank container transports gases in high- pressure cylinders (3000-5000 psi) is known as a(n) A. tube module/trailer B. cryogenic intermodal tank C. IM 101
D. IM 102 - CORRECT ANSWER A. tube module/trailer
A recon team is sent to observe a tank truck that has rolled over. the team reports that the vehicle is an MC312. the container most probably contains a A. flammable liquid B. corrosive liquid C. poison gas
D. flammable solid - CORRECT ANSWER B. corrosive liquid
a noninsulated single-shell vessel illustrated below, which carries gases that have been liquified, is an A. MC306 / DOT B. MC307 / DOT C. MC312 / DOT
D. MC331 - CORRECT ANSWER D. MC
High pressure tank trucks
B. B
C. C
D. Industrial - CORRECT ANSWER A. Type A
Which is mandatory information found on a pestiside label? A. Environmental protection agency registration number B. flammability level C. national fire protection association 704 data
D. CHEMTREC phone number - CORRECT ANSWER A. Environmental
protection agency registration number The statement "Keep Away from Waterways," is found on a pesticide label. This statement is referred to as a(n): A. signal word B. precautionary statement C. pest control product warning
D. incompatibility statement - CORRECT ANSWER B. precautionary
statement the environmental protection agency (EPA) signal word - Warning - represents A. high level of toxicity B. moderate level of toxicity C. low level of toxicity
D. intermediate level of toxicity - CORRECT ANSWER B. moderate
level of toxicity of the references listed below, the most specific source of information on a hazardous material is the A. DOT ERG B. MSDS C. DOT placards
D. NFPA 704 system - CORRECT ANSWER B. MSDS
A tank truck that carries corrosive liquids, generally acids, and has a narrow diameter with external ribbing is an A. MC306 / DOT B. MC307 / DOT C. MC312 / DOT
D. MC331 - CORRECT ANSWER C. MC312 / DOT
when considering personnel protection, remember that the most vulnerable route of exposure for and emergency responder is A. Skin absorption B. heat stress C. the eyes
D. the respiratory system - CORRECT ANSWER D. the respiratory
system The concentraion that should never be exceeded is called the A. TLV-C B. PEL C. TLV-TWA
D. STEL - CORRECT ANSWER A. TLV-C
when exposed to heat or fire, a liquid with a low boiling point will A. less readily change to vapor than a liquid with a high boiling point B. spontaneously combust C. become more corrosive D. more readily change to vapor than a liquid with a high boiling point -
CORRECT ANSWER D. more readily change to vapor than a liquid
with a high boiling point caustic sodium hydroxide and potassium hydroxide are examples of: A. Polymers B. Catalysts C. acids
C. will be lower than the same substance at 68 degrees
D. will vary considerably at 68 degrees - CORRECT ANSWER B.
always higher than the same substance at 68 degrees The immediate concern when dealing with combustible liquid spills is to A. apply aqueous film forming foam to the combistible liquid B. prevent ignition of the fuel C. dike storm drains along collection route
D. ignite fuel to allow the combustible materials to burn off - CORRECT
ANSWER B. prevent ignition of the fuel
to contact the shipper for hazard and response information, a firefighter can obtain information number from A. Computer-aided management of emergency operations B. the chemical abstracts service registry number C. the ERG
D. the shipping papers - CORRECT ANSWER D. the shipping papers
Vapors that attack the mucous membranes, such as the surfaces of the eyes, nose, and throat, are considered: A. asphyxiants B. irritants C. anesthetics
D. carcinogens - CORRECT ANSWER B. Irritants
Convulsants are best described as: A. poisons that will cause an exposed individual to have seizures B. cancer causing agents C. exposure to microorganisms or toxins materials that will cause allergic reactions form repeated exposure -
CORRECT ANSWER A. poisons that will cause an exposed individual
to have seizures
Which is a symptom of an irritant exposure? A. diarrhea B. burning sensation to the eyes C. convulsions
D. fluid in the lungs - CORRECT ANSWER B. burning sensations to the
eyes Toxic gases, blood agents, such as arsine and cyanogen chloride, would fall under which UN/DOT hazard class A. 1. B. 1. C. 6.
D. 2.3 - CORRECT ANSWER D. 2.
the products that IM101 intermodal portable tanks typically carry are A. molten sulfur B. flammable gases C. Flammable liquids
D. radioactive materials - CORRECT ANSWER C. flammable liquids
which DOT hazard class covers nerve agents used in chemical warfare A. DOT 6. B. DOT 6. C. DOT 6.
D. DOT 5.2 - CORRECT ANSWER B. DOT 6.
the physical destruction or decomposition of chemical protective clothing by a chemical action is called A. degradation B. breakthrough time C. penetration
D. permeation - CORRECT ANSWER A. degradation
B. command, planning, safety, logistics, finance C. command, operations, planning, logistics, finance
D. operations, logistics, planning, support, service - CORRECT
ANSWER C. command, operations, planning, logistics, finance
Once the safety officer arrives on the scene, the Incident Commander should: A. have the safety officer review the incident action plan B. delegate command to the safety officer C. place the safety officer under operations
D. make the safety officer a branch officer - CORRECT ANSWER A.
have the safety officer review the incident action plan at a hazardous materials incident, the safety officer's responsibilities include A. obtaining briefings form the logistics officer B. participating in preparation of and monitoring the safety plan C. being the coordination point between the incident commander and and assisting agency D. advising the incident commander about any action deemed unsafe -
CORRECT ANSWER B. participatin in preparation of and monitoring
the safety plan at a hazardous materials incident, the assistant safety officer directly reports to the A. incident commander B. safety officer C. dispatcher
D. HAZMAT team leader - CORRECT ANSWER B. safety officer
The National response framework group that is responsible for coordinating federal assistance and supporting incident management activities locally is the A. unified coordination group
B. homeland security council C. regional response coordination center
D. interagency incident management group - CORRECT ANSWER A.
unified coordination group which of the following accomplishes control of an incident involving multiple agencies with overlapping authority and responsibility? A. unified command B. pre-incident plan C. mutual aid agreement
D. regional area command - CORRECT ANSWER A. unified command
PPE must be stored properly to prevent damage or malfunction from exposure to A. dust and exposure B. damaging chemicals and extreme temperature C. impact
D. All the above - CORRECT ANSWER D. all the above
When a fire involves the cargo of a truck transporting explosives, the responders should: A. increase water application immediately B. try to separate unburned cargo C. attempt to move the involved vehicle to a safer location
D. immediately evacuate the area - CORRECT ANSWER D.
immediately evacuate the area which of the following information should be gathered during on-scene debriefings? A. weather conditions B. training needed C. cost of operations
D. Important observations - CORRECT ANSWER D. important
observations
pose the greatest risk? - CORRECT ANSWER Presidential Policy
Directives What law regulates labeling, shipping, and packing of hazardous
materials? - CORRECT ANSWER Hazardous Materials Transportation
Act (1974) What law created a manifest tracking system, and established permit
system for treatment, storage, and disposal? - CORRECT ANSWER
Resource Conservation Recovery Act (1976) What law is known as a superfund, and made responsible parties pay for cleanup of scenes, and created a notification system for spills? -
CORRECT ANSWER Comprehensive Environmental Response
Compensation Liability Act (1980) What law required OSHA to develop health and safety standards that eventually brought about 29 CFR 1910.120 Hazardous Waste
Operations and Emergency Response (HAZWOPER)? - CORRECT
ANSWER Superfund Amendments and Reauthorization Act (SARA)
Title 1 What law is also known as the emergency planning and community right to know act and created state emergency response commission
and local emergency planning committees? - CORRECT ANSWER
Superfund Amendments and Reauthorization Act (SARA) Title 3 What law requires facilities to submit an emergency and hazardous chemical inventory to SERC, LEPC, and local fire departments? -
CORRECT ANSWER Superfund Amendments and Reauthorization Act
(SARA) Title 3 What NFPA standard covers competencies for first responders dealing
with Hazmat operations? - CORRECT ANSWER NFPA 472
What is a plan that should be consistent with local emergency response plan and within the capabilities and training level of the
team, and trained on and examined and updated frequently? -
CORRECT ANSWER Standard Operation Guideline (SOG)
What is the 5 step process for hazardous materials incidents? -
CORRECT ANSWER Isolate, Identify, Notify, Mitigate, Terminate
What step in the 5 steps of hazardous materials incident do you deny access, control egress, stage incoming companies, and establish
hazard zones after gathering information? - CORRECT ANSWER
Isolate What step in the 5 steps of hazardous materials incident do you find the occupancy and location, container shapes and sizes, markings and colors, placards and labels, shipping papers/MSDS, monitoring/senses,
and find the principle responsible party? - CORRECT ANSWER
Identify What step in the 5 steps of hazardous materials incident do you get more personnel, get more equipment, and get outside agencies to
come help? - CORRECT ANSWER Notify
What step in the 5 steps of hazardous materials incident do you have non-intervention approach, offensive approach, and defensive
approach? - CORRECT ANSWER Mitigate
What step in the 5 steps of hazardous materials incident do you debrief, document, do medical evaluations, recover costs, replace
equipment, and critique? - CORRECT ANSWER Terminate
In what NFPA/EPA level of response can the incident be controlled by
the initial responding units? - CORRECT ANSWER Level 1
In what NFPA/EPA level of response there is moderate incident that encompasses a greater potential threat to the surrounding area or
community? Could possibly require evacuation. - CORRECT ANSWER
Level 2
