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HAZWOPER Technician
Practice Exam
Knowledge Check
Page 1 of 5
1.
Which cargo tank truck almost always carries flammable/combustible liquids such as gasoline, fuel oil, or alcohol?
Nonpressure
High pressure
Low pressure
Cryogenic
2.
Where would you find information on protective clothing and respiratory protection recommendations?
The ID Guide in the yellow-bordered pages
The Public Safety Section in the orange-bordered pages
The green highlighted sections of the blue-bordered pages
The Table of Initial Isolation and Protective Action Distances
3.
What is a likely result of following predetermined procedures at emergency incidents?
Effective command and control
Decreased accountability
Increased chaos on scene
Size-up becomes unnecessary
4.
What is the process in which a hazardous liquid interacts with (or is bound to) the surface of a sorbent material?
Sorption
Adsorption
Absorption
Resorption
5.
Which type of biological/etiological hazard spreads mostly through the bite of infected arthropods?
Rickettsias
Biological toxins
Viruses
Bacteria
6.
Which level of PPE is only used when the specific material is known and has been measured, and the atmosphere is not IDLH?
Level D
Level A
Level B
Level C
7.
The decision of whether to perform emergency or technical decon is determined based on the hazardous material involved and:
temperature and wind conditions.
how much media coverage is involved.
the local terrain and available waterways.
the urgency in removing the victim from the contaminated environment.
8.
Which type of respirator can remove vapor and gas?
SCBA
IDLH
CPC
APR
9.
Which of the following is a descriptive name, identification number, weight, or specification that includes instructions, cautions, or U.N. marks, and is required on outer packaging of hazardous materials?
Label
Placard
Four-digit ID number
Marking
10.
A Level II incident:
does not require the use of chemical protective clothing.
will most likely not be concluded by any one agency.
is beyond the capabilities of the first responders on the scene.
requires resources from state/provincial agencies, federal agencies, and/or private industry.
Page 2 of 5
11.
A written agreement defining roles and responsibilities within a Unified Command structure is known as a(an):
Incident Management System (IMS).
National Incident Management System (NIMS).
Memorandum of Understanding (MOU).
National Response Framework (NRF).
12.
Under ANSI Z535.1, what color means Warning?
Red
Green
Orange
Yellow
13.
Overhead power lines, highway traffic, and rail lines are examples of:
unavoidable risks.
potential site hazards.
potential ignition sources.
variables to eliminate.
14.
The three incident priorities at all hazardous materials incidents apply to:
fire and rescue operations.
emergency responders entering the hot zone.
all emergency services organizations.
civilian and emergency responder victims.
15.
Which of the following BEST describes a unit of pressure relative to the surrounding atmosphere?
kPa
kJ
Atmospheres
psig
16.
A highway vehicle without a placard:
should be stopped and inspected for terrorist activity.
may still be carrying hazardous materials.
is illegal.
will NOT be carrying hazardous materials.
17.
What is the first step in the sequence proposed by the General Hazardous Materials Behavior Model (GEBMO)?
Exposure
Stress
Dispersion
Release
18.
How do EMS ensembles differ from fire service first responders?
EMS personnel must wear ballistic protection.
EMS PPE must provide blood- and body-fluid pathogen barrier protection.
EMS PPE includes a sidearm.
EMS personnel will typically wear higher levels of respiratory protection.
19.
Which of the following BEST describes physical processes of materials?
Any erroneous or incomplete placarding or markings
The conversion of one substance to another
Peculiar smells, visible vapor clouds, and radiant heat
Processes that do NOT change the elemental composition of materials involved.
20.
In Step 1 of the APIE process, responders:
gather information and attempt to understand the current situation.
perform tasks determined in the planning stage and direct actions to mitigate the incident.
use the information gathered to determine what actions need to be taken to mitigate the incident.
monitor progress to see whether the response plan is working and continue throughout the incident.
Page 3 of 5
21.
One difference between Mexican and U.S. placard, label, and marking systems is that:
Mexico does not require placards for radioactive materials.
Mexico has several placards for materials that may be inhaled.
information provided on Mexican labels and markings is likely to be in Spanish.
the Mexican system has several fewer hazard classes than the U.S. system.
22.
The three mechanisms of harm in a container hazardous materials incident are:
wind speed, barometric pressure, and time of day.
energy release, corrosivity, and toxicity.
radioactivity, pressure, and temperature.
dispersion patterns, rapid release, and detonation.
23.
What type of incident requires unified command?
Level III
Level IV
Level II
Level I
24.
Which statement about structural firefighters' protective clothing is accurate?
Although some hazardous materials can permeate structural fire fighting clothing, the material will quickly dissipate.
It provides exposure protection from liquid chemicals.
Gaps in structural fire fighting clothing only occur at the wrists and waist.
Gases and vapors can permeate the garments.
25.
The reducing agent in the fire tetrahedron acts as the _____ source for the reaction.
oxygen
fuel
activation
autoignition
26.
Which of the following statements about determining the need for emergency decontamination at an incident is MOST accurate?
Emergency decontamination is necessary for anyone exposed to a hazardous material.
Emergency decontamination includes the transfer of a hazardous material in greater than acceptable quantities.
Emergency decontamination should be considered at all hazmat incidents.
Emergency decontamination is the sudden failure of personal protective equipment or clothing.
27.
The technical decontamination process that uses a material to change the chemical structure of a hazardous material is:
dilution.
chemical degradation.
evaporation.
brushing and scraping.
28.
What type of containers are flexible, collapsible bags or sacks, and also called bulk bags, bulk sacks, or tote bags?
Liquid
RIBC
Nonbulk
FIBC
29.
If service canines are brought into the hot zone, they must be:
destroyed.
isolated.
kept away from victims.
decontaminated.
30.
Which of the following is a 3.9-inch (100 mm) square-on-point diamond that identifies hazardous materials within packaging?
Placard
Four-digit ID number
Label
Marking
Page 4 of 5
31.
Assessing the incident's conditions to recognize cues that indicate problems or potential problems is called:
size-up.
hazard assessment.
preincident planning.
safety checks.
32.
What type of dispersion pattern forms an irregularly shaped pattern of an airborne hazardous material where wind and/or topography influence the downrange course from the point of release?
Particulate
Cloud
Hemispheric
Plume
33.
The basic principles of decon are get it off, keep it off, and _____ it.
contain
identify
preserve
destroy
34.
What should happen before entry personnel enter the hot zone?
Victims should be instructed to disrobe.
Responders should undergo decon.
Victims should be identified.
Technical decon should be set up.
35.
The APIE process is a simple 4-step response model that:
is required to be used at all North American hazmat incidents.
is not effective in large or complex hazmat incidents.
can guide responders' actions at hazmat incidents.
is most effective in large or complex hazmat incidents.
36.
Vapor protective clothing is usually part of what level of protection?
C
B
A
D
37.
When protecting the public at an incident, if there is enough time, the best protective action generally is:
on-scene debriefing.
evacuation.
shelter in place.
progress reports.
38.
The damaging effects of ionizing radiation occur at the _____ level.
environmental
organ
cellular
external
39.
The decontamination site should be situated _____ of the hot zone.
downwind
upwind
inside
opposite
40.
If a first responder becomes contaminated before realizing the situation, they should immediately withdraw and:
notify law enforcement.
set up a decon zone.
follow local procedures for emergency decontamination.
sample themselves to determine the contaminant.
Page 5 of 5
41.
If an IC receives favorable progress reports from tactical and/or task supervisors, this is an indication that:
the IC is no longer needed.
the IAP is effective.
the incident is destabilizing.
responders should withdraw immediately.
42.
MC-331 cargo tanks typically have bolted manways, inlet and outlet valves, and:
multiple compartments.
black, heat-absorbing paint.
large hemispherical heads on both ends.
large bulky double shelling and heavy insulation.
43.
What will increase the rate of polymerization and decrease the activation energy necessary for further polymerization?
Catalyst
Inhibitor
Fuel
Contamination
44.
The aim of technical decon for nonambulatory victims is to:
package and triage them appropriately.
thoroughly decontaminate them before transferring them to EMS.
apply first aid and return them to an ambulatory state.
make sure they understand the delayed health risks of the hazardous material.
45.
Partially water-soluble chemicals will penetrate into the lower respiratory system and cause:
itching, scratching, and bloody skin lesions.
delayed symptoms that include pulmonary edema and coughing up blood.
sudden gastrointestinal distress.
immediate symptoms such as coughing and throat irritations.
46.
Decontamination usually takes place within the:
cold zone.
command zone.
hot zone.
warm zone.
47.
What is required for all first responders who have been exposed or potentially exposed to hazardous materials?
Immediate hospitalization
Exposure justification
A leave of absence
Exposure records
48.
Which of the following is an indicator to withdraw immediately?
Consistent temperatures
Black smoke
Alarm sounding on a photoionization detector.
A sudden change in pressure
49.
Collision, impact, or internal overpressure are common causes of damage to a container caused by _____ energy.
thermal
chemical
radiological
mechanical
50.
In Step 4 of the APIE process, responders:
perform tasks determined in the planning stage and direct actions to mitigate the incident.
monitor progress to see whether the response plan is working and continue throughout the incident.
gather information and attempt to understand the current situation.
use the information gathered to determine what actions need to be taken to mitigate the incident.
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