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FIREFIGHTER HAZMAT OPS TEST
FINAL EXAM |2025-2026 Newest
Update|Recently Testing Real Exam
Questions|COMPREHENSIVE
QUESTIONS AND VERIFIED
ANSWERS|Already Graded A+
Compared to other types of incidents to which first responders are commonly called, hazardous material incidents typically ___________.
more complicated
By which acronym are the federal regulations detailing hazardous materials response competencies collectively known?
HAZWOPER
Which of the following actions is permitted for operations-level hazardous materials
responders?
closing remote valve
Which federal agency enforces and publicizes laws and regulations governing
transportation of hazardous materials?
department of transportation
What is the minimum level of hazardous materials training for a hazardous materials
officer?
operations
Ideally, when should response to a hazardous materials incident begin?
during pre incident planning
What is the minimum level of hazardous materials training required to take defensive
actions?
operations
What is the temperature at which a flammable liquid will ignite without any external
ignition source?
ignition temperature
What is the vapor density of air?
1
What does the NFPA 704 marking system address?
Hazardous materials at fixed facilities
What is the typical maximum pressure reading for a standard oxygen cylinder used in
the medical field?
2,000 psi (13,800 kPa)
Which cargo is carried by a highway tanker that has a smaller-diameter tank with
several reinforcing rings around the circumference?
corrosives
Which free service can be accessed to connect fire fighters with chemical
manufacturers, chemists, and other specialists during a chemical incident?
Chemtrec
What is the term for shipping papers carried on railroad transportation?
waybill
What is most commonly contained in large, above-ground, horizontal storage tanks?
flammable or combustible liquid
Which item must be included on a pipeline warning sign?
emergency contact number
Are above-ground storage tanks pressurized or nonpressurized?
can be either one
A high-pressure intermodal tank is commonly used to transport __________.
liquified gas
Which information is critical for proper selection of PPE?
physical and chemical properties
A motor vehicle accident causes a small gasoline spill. This is a Level _____ incident.
Level I
Hazardous materials operations-level responders should perform only those actions that
__________.
do not involve contact with material
What is the term for the physical destruction or decomposition of clothing due to
chemical exposure, general use, or ambient conditions?
Degradation
Which control zone is referred to as the safe zone?
cold zone
Skin contact with an alkaline material is most likely to cause __________.
dissolving skin tissue
What is the recommended treatment for heat exhaustion?
rest and rehydration
Which of the following occupies the warm zone?
Decontamination corridor
What is the term for the placement of impervious materials to form a barrier so as to
limit the spread of a liquid hazardous material?
diking
During use of the shelter-in-place technique, the ventilation system should be
__________.
turned off
What is the most reliable way to determine how far to extend actual evacuation
distances?
detection equipment
Following mass decontamination, victims should be directed to the __________.
triage area
Which statement about runoff during emergency decontamination is correct?
an effort should be made to divert runoff from drains, streams, and ponds
A contaminated victim coming into physical contact with a rescuer is an example of
________.
cross-contamination
process by which a substance moves through a given material on the molecular level
bill of lading
highway or road msds
way bill
railroad msds
pipeline markings need
warning symbol
pipeline owner name
emergency contact #
pesticide labels
active ingredients by name
EPA establishment #(where it's manufactured)
EPA registration #(proof it's registered)
V agent (VX), a nerve agent
most deadly chemical
Radioactive materials are transported in heavy
containers.
type a, type b, type c
Type A (Radioactive container)
normal transport
will not exceed 3,000 lbs
- often with an inner containment vessel made of glass, plastic, or metal surrounded by packing material of polyethylene, rubber vermiculite or wood
Type B (Radioactive container)
used to handle more serious accidents
Metal drums
Type C (Radioactive container)
Air shipments
MC 306/DOT 406
Typically 15 to 25 psi
Corrosives
Sulfuric acid, phosphoric acid, sodium hydroxide
Smaller diameter than MC307 and has
reinforcing rings around the tank
MC 312/DOT 412
MC 331
High Pressure Cargo Tank (300 psi)
Internal working pressure 250 psi
Rounded ends
Ammonia, propane, Freon, butane
Explosion hazard if flame impingement
Spring loaded relief valves
Set at 110% of designated maximum working
pressure
MC 331
MC 338
Cryogenic Liquid Tank Car
Low pressure tank with insulation
Low temperatures
Relief valve near control box
Occasional small puffs of white vapor may vent
here, this is considered a normal part of operation
for the valve
MC 338
Compressed gas tube trailers
Carry compressed gases
Hydrogen, oxygen, helium, methane
High volume transportation vehicles made up
of several individual cylinders banded
together
Operating pressure of 3000 to 5000 psi
Compressed gas tube trailers
dry bulk carrier
- acids/corrosives damage skin right away
- bases take longer to damage
penetration
flow through of hazard material through zippers, seams, pin holes or other imperfections
Permeation
Hazardous materials move through suit on molecular
level
Degradation
Physical destruction or decomposition of clothing
material owing to chemical exposure, general use or
ambient conditions (charring, shrinking, swelling)
IMO type 1
IM 101 (6,300 gallons)
- mild corrosives
- food products
- flammable liquids
IMO type 2
IM 102(6,300 gallons)
- non hazardous materials
- flammable liquids
- corrosives
IMO type 5 or spec. 51
pressure intermodal liquified compressed gas
IMO Type 7
Cryogenic Intermodal Tanks (LIQUID)
Tube Modules
similar to tube trailers
oxidizers
- Drums: Open and Closed Head (use bung wrench)
Bulk packaging
Large containers such as fixed tanks, highway tanks and rail tanks
Level I (Lowest)
Small hazard, usually single engine, turnouts & SCBA,
small fuel spill
Level II (Medium)
HazMat Team needed, Chem. Protective PPE, possible
evacuation and decon, a sulfuric acid tanker overturns
and is leaking
Level III (High)
Highly toxic chemicals, possible large scale
evacuation, federal assistance needed
confinement
using materials or barriers to keep a leak in a certain area (limits direct exposure to responders)
Containment
physical action of stopping a leak such as
absorption
the process or action by which one thing absorbs or is absorbed by another.
Adsorption
Containment adheres to the surface of the added material
Terrorist Events
beware of secondary devices
LEPC
Local Emergency Planning Committee
A diverse Emergency Planning Group responsible for Hazardous Materials planning in each county in Illinois
