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Firefighter Hazmat Operations: A Comprehensive Exam Review, Exams of Safety and Fire Engineering

This document offers a thorough review of key concepts in firefighter hazardous materials (hazmat) operations. it presents numerous questions and answers covering topics such as incident response, hazardous material identification, personal protective equipment (ppe), and decontamination procedures. The questions are designed to test understanding of federal regulations (hazwoper), material properties, and safe response strategies. This resource is valuable for students and professionals seeking to enhance their knowledge of hazmat operations.

Typology: Exams

2024/2025

Available from 05/08/2025

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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
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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

  • Permeation-

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

  • propane
  • butane

IMO Type 7

Cryogenic Intermodal Tanks (LIQUID)

  • nitrogen
  • oxygen
  • helium

Tube Modules

similar to tube trailers

  • hydrogen
  • oxygen

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

  • plugging
  • patching

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