Shuffled Questions Flashcards
What is normally used for the notification process in a
chemical plant?
On-site public address system
What is the highest strategic priority for any IC?
Life safety
What is the biggest problem the IC manages by addressing site management?
People
Locations within what distance of the incident will be
rapidly overtaken by the hazmat?
1000 feet (304 m)
Who can be used to secure the perimeter inside the plant when operating on a private facility?
On-site security force
What should be the minimum number of alerting methods that should used during a full-scale evacuation?
two
Who is normally responsible for performing door-to-door
alerting?
Law enforcement
Within what amount of time must the EAS be available to
the President of the United States using normal activation procedures?
10 minutes
How many buildings are affected during a limited-scale
evacuation?
One or two
How many times more expensive is a full-scale evacuation than sheltering-in-place for the manufacturing sector?
Fifteen
How often will the vehicle have to stop to broadcast the
evacuation message when using a public address system on an emergency vehicle?
1000 feet (304 m)
1000 feet (304 m)
0.5 air exchanges per hour
In which situation is sheltering most effective?
Fast-moving toxic vapor cloud
How many people are estimated to have evacuated Manhattan
Island on 9/11?
300,000 to 1 million
Which of the following is NOT an appropriate action when protecting-in-place?
Turn HVAC systems to recycle
What should always be tested for when a sick building is
suspected?
Carbon monoxide
What creates concern when a person has been evacuated?
Lack of information
What will continue to arise when the IC launches into
tactical operations without first addressing basic site
management tasks?
Safety issues
What should be the first point of control when confronted
with an incident inside a structure?
Points of entry
What is the isolation perimeter between?
General public and cold zone
At which location are people a majority of the time on an
average day?
Home
Which of the following is NOT what you would expect when you encounter sick building syndrome?
Many people throughout the building with symptoms
How much breathing air is typically in the cylinders of
the Emergency Breathing Apparatus?
5 to 10 minutes
What unit should assume command initially at the hazmat
incident?
First arriving
What is the minimum number of people that each member is being observed by in the Hot Zone?
one
What is the only practical and cost-effective way of
moving large numbers of people with critical
transportation needs?
Commercial motor coaches
What may be the most prudent course of action for
short-term releases?
Protect-in-place
Which statement about the command functions during the establishment of command by the first-arriving officer is NOT correct?
Select a movable location for the ICP
What zone should the emergency responders supporting the tactical hazmat response operation be located?
Warm and cold
Where is the most ideal way to approach the hazmat
incident scene?
Uphill and upwind
What is generally seen as the maximum amount of time an older building can provide a safe refuge when
protecting-in-place?
One hour
Which of the following is NOT correct about what is needed before first responders can effectively perform rescue operations in a hazmat environment?
Have ICP staffed
What should an area with any measurable concentration of a contaminant be initially considered to be within?
Hot zone
Which of the alerting systems is the fastest at warning 25
percent of the population?
Siren/fixed response
Who is the best resource to use when establishing
isolation perimeters?
Law enforcement
With what minimum level of staffing can most Hot Zone
operations be accomplished?
Four
Where should the Area of Refuge be established when
civilians are exposed prior to responder arrival?
Hot zone
Which section is responsible for managing the staging
area?
Operations
How often should the IC consider issuing a written
progress report to be posted at the shelter when the
incident covers a period of days?
Two times a day
What grades is Wally Wise Guy designed to reach about
sheltering-in-place?
Kindergarten to fourth
What level incident will require the total evacuation of
all company personnel and the surrounding public to a
pre-designated location outside the immediate area?
III
Who is usually responsible for coordinating all personnel
accountability activities at the fixed facility?
Supervisors
How far short of the scene does staging typically occur as part of initial response operations?
One city block in the direction of travel
Which oxygen level reading would place the area into the Hot Zone classification?
19.5%
Who manages the Personalized Localized Alerting Network?
FEMA
What is the cost to individual households for a full-scale
evacuation?
Seven times the cost to shelter-in-place
What percentage of the population is it estimated will
need to shelter when evacuated?
35%
Which of the following should be used for security at an
evacuation shelter?
Police officer
What area must the IC gain control of when achieving
public protective actions objectives?
Beyond isolation perimeter
Which of the following specialized tanks consist of
seamless cylinders permanently mounted inside an open frame?
Tube modules
Where will the physical or chemical hazard statement be
located?
Side panel
At what temperature are products in a refrigerated storage tank stored?
Near boiling point
How many openings are usually found on closed head drums?
Two
In which type of packaging can spent nuclear fuel be
expected to be found?
Type B
What letter is used to indicate a leakage test on the
cargo tank?
K
Up to what maximum allowable working pressures can be found in non-pressure tank containers?
100 psig
What is located at the “B-end” of the railroad tank car
that is used as the initial reference point?
Hand brake wheel
What is the minimum number of required labels that must be displayed on or near the closure of the container on an
aircraft?
One
Which commodity accounted for the largest member of
fatalities between 2000 and 2009?
gasoline
What is the only reliable method to identify cylinder
contents?
DOT label
Which type of packaging is used to transport limited
quantities of smoke detectors?
Excepted
Which has little significance to responders?
EPA Establishment Number
What working pressure range is seen with the dome roof
tank?
2.5 to 15 psi
Which of the following is the title of the shipping paper
when transported by highway?
Freight bill
What can be used to determine the capacity of a pressure tank car?
Tank car marking
What should you do if you cannot identify the material?
Classify it
Where are the reporting marks and number generally found on the intermodal portable tank container?
Right-hand side (as you face it from either side) and on
What is transported in the pneumatically unloaded covered hopper car?
Dry, solid materials
What is used to provide emergency venting in the cone roof
tank?
Weak roof-to-shell seam
Where are pressure relief devices typically incorporated
on a portable tank or “tote”?
Container fill lid
What letter means the rail car is not owned by a railroad?
X
What color in the NFPA 704 marking system indicates the
reactivity of the material?
Yellow
What size range is seen in industrial high pressure
horizontal tanks?
1,000 to 120,000 gallons
What pressure range of the tank is indicated by the tank marking T4 (74)?
<1.47 (21.3 psig) bar pressure test
What must a liquefied oxygen tank be over?
Concrete pad
What helps to identify the open floating roof tank?
Wind girder around the top of the tank shell and roof
ladder
What may be done to identify liquid lines on the high
pressure spherical tank?
Paint them
How many compartments are normally found in an intermodal
portable tank container?
one
Where may a wide band of corrosion-resistant paint be
found running vertically on the non-pressure tank car
transporting strong corrosives?
At the manway
How long are the contents of the cryogenic liquid tank car protected from ambient temperatures?
30 days
What is the maximum number of bottles allowed to be in
multi-cell packaging?
6
Where on the front label panel will the toxicity signal
word be found?
Center
What is primarily stored in the cone roof tank at petroleum storage facilities?
Combustible liquids
For which of the following is an exemption required if the
material is being transported in a “super sack”?
Liquid hazardous materials
What color will fire protection piping normally be
painted?
Red
What material is most often used to construct uninsulated
cylinder containers?
Steel
What do a vast majority of water treatment plants have on site in large quantities?
Chlorine
What color plate is used for the cargo tank truck
combination of MC-306 or DOT-406?
Red
Where do molten sulfur tank trucks frequently have a large breathing air cylinder attached?
Near the trailer’s ladder
What color candy-striped border on any cargo paperwork
will indicate the presence of hazardous materials?
Red
How long is the fire test that is conducted on Type C
packaging?
60 minutes
What letters before the four-digit identification number
can be used for domestic and international shipment?
UN
Which hazard zone is applied to the most toxic material?
Zone A
What type of heads are found on ton containers?
Concave
If a material being shipped is a mixture of four hazardous
materials, what is the minimum number of technical names that most predominantly contribute to the hazards of the mixture that must be listed on the shipping papers?
Two
Which of the following is NOT a performance test conducted on nonbulk packaging?
Vacuum test
What is the portable bin designed to be moved with?
Forklift
What is in place when a pipeline crosses under a road?
Marker
Where are Dewars containers commonly found?
Laboratories
What route of transport are materials in Type C packaging moved?
Aircraft
Until what date can distributors continue to ship products
using older hazcom labels?
December 1, 2015
What determines proper placard and label(s)?
Hazard class
What hazard class is NOT primarily transported in the high pressure cargo tank truck?
Gasoline
What is the maximum allowed capacity for compressed gas in nonbulk packaging?
Water capacity of 1,001 pounds (454 kg)
Which of the following senses offers some protection at
the hazmat incident?
Vision
Which part of the railroad tank car marking “AAR 201T100C F-1” designates the type of material used in the tank
construction?
“C”
What percent active ingredients is indicated by the word
“Technical” with the product name?
70% to 99%
What is typically last in the product cycle for a liquid
petroleum pipeline?
Regular gasoline
Approximately what percentage of releases occur during
transport of chemicals?
25%
What color is the label that must be attached to the
package of materials that can only be transported on cargo aircraft?
Orange and black
Where on the driver’s side of the cargo tank truck will
the manufacturer’s specification plate be mounted?
Front third of the tank
What material is typically used to make the gastight outer
shell of the cryogenic liquid storage tank?
Carbon steel
Up to what amount of material may wooden boxes contain?
550 pounds
Which DOT standards apply to the specialized cryogenic
tank containers?
Spec 51
What is the outer shell of the cryogenic liquid cargo tank
truck filled with?
Insulation
Where is the specification marking stamped on the rail car where it is not readily visible?
Heads
What percentage of the total number of tank containers
worldwide do IM-101 and IM-102s account for?
Over 90%
Where is the dry caustic soda off-loaded of the dry bulk
tank truck?
Bottom
What will the first set of numbers on the railroad tank
car designate?
Class designation
What portion of the MC-331 specification tanks are painted a light reflective color?
Upper two-thirds
Where are values and fittings on the non-pressure tank
containers located?
In top spillbox
What color label would warn responders of transformers and equipment that is PCB-laden?
Black-on-yellow
Which is considered the workhorse of the chemical
industry?
Low pressure chemical cargo tank truck
How are the majority of radioactive material shipments
made?
Roadways
What color plate is used on a non-specification cargo tank truck?
Blue
What is the first clue for the recognition and
classification of any hazmats involved?
Occupancy and location
Up to what capacity of an oxidizer may be found in a
“composite IBC”?
500 gallons
What material is used to construct the frame of the
“composite IBC”?
Steel
What is the outer protective jacket on the cryogenic
cylinder made from?
Metal
What type of bottle is generally used for transport of
light sensitive and reactive materials?
Brown glass
What is the service pressure range of pressure tank
containers?
100 (6.8 bar) to 500 psi (34 bar)
Which of the following is the most common multi-purpose
configuration of the cargo tank trucks?
DOT-407 and DOT-412 units
What is used in the NFPA 704 marking system to indicate
materials that demonstrate unusual reactivity to water?
W with a line through it
What radioactive label will be found when the maximum
contact radiation level ranges from 50 mrem/hour to 200 mrem/hour?
Yellow III
What is the third most common hazard class?
Corrosive materials
Which identification method can be done the farthest
distance from the material?
Container shapes
Where is the discharge on “super sacks” often located?
Bottom
How are flexible intermediate bulk containers transported in open and closed transport vehicles?
On pallets
Which packing group indicates minor danger?
PG III
What is commonly found in a carboy?
Caustics
What is the inner containment vessel of Type A packaging made from?
Glass
From which part of the tank truck are compartments
sequentially numbered?
Front
What indicates how much radioactivity is present on the
radioactive label?
Activity
What word must be on packages with materials that are
liquids at or above 212 degrees Fahrenheit (100 degrees
Celsius)?
HOT
What color is the supplemental label used on DOT
explosives?
Orange
What agency regulates packaging used for transporting
hazardous materials?
DOT
What do the first digits following the county code on the
intermodal tank container indicate?
size
Where are the cylinder valves, piping, and controls
typically located on the compressed gas trailer?
Back of the unit
What is the only reliable method to identify cylinder
contents?
Check the attached label
What factor is being addressed when a chlorine container is rotated to change a liquid leak into a vapor leak?
Magnitude
What is the minimum number of wreckers that will be
required for the uprighting operation of a transport and
tractor trailer combination?
Two
Where may Command Officers have their actions and
decisions judged?
Court of public opinion
Soft wood plugs are effective for holes that are under
what size?
3 square inches
What constant is used to determine the storage tank area
during the pre-incident planning process?
.785
What should the incident objectives be based upon?
Factual information
What statement about the operational considerations during a pressure transfer is NOT correct?
Requires tank containing the product be vented and the
receiving tank be airtight
What will the costs of making a mistake at a reactive
chemicals incident often be measured in terms of?
Lives
What is the key concern when selecting a neutralizing
agent?
Biodegradability
What type of fire exposure is present with a primary
exposure at the flammable liquid emergency?
Direct flame impingement
Which type of rescue situation is removing a victim from a cooling tower?
High-angle rescue
What is best suited when diking a substantial spill?
Bagged sand
How many holes are normally required when performing vent and burn operations on a pressurized tank car?
2
Which may be the most readily available chemical that can be used to improve the ground field?
Sodium chloride
What is used to gain access to bulk liquid or gas tanks,
pipelines, or containers to accomplish product removal?
Hot tapping
Which is an example of a fooler gas?
Anhydrous ammonia
Where is the open end of the overpack drum placed when performing the V-roll method?
Under the rim of the leaking drum
What was the common problem in the incidents at St.
Elizabeth de Warwick, Quebec in 1993; Burnside, Illinois
in 1997; and Albert City, Iowa in 1998?
Pressure-relief valves not functioning
What is the resistance of a chemical to decomposition or
spontaneous change?
Stability
Where should the neutralizing agent be applied to the
corrosive spill first?
Outermost edge
Which mode of operation is being used when diking the
hazmat?
Defensive
Which of the following is NOT a tactical priority for
managing a flammable gas fire?
Increase operating pressure of the line feeding the fire
What is the process of connecting two or more conductive objects together by means of a conductor?
Bonding
What type of operations are confinement tactics?
Defensive
What should the minimum angle of the diversion barrier be for a fast-moving spill?
60 degrees
What is used to prevent the LNG from coming into contact with the outer shell/hull of LNG carriers?
Inner shell/hull
How should the confined space be treated when air
monitoring is within acceptable limits?
Contaminated
What type of fire responders treat an incident with large
quantities of strong oxidizers and organic peroxides?
Explosives
What must the IC be able to do first to begin the process
of assembling a site safety and control plan?
Understand the nature of the problem
What is the maximum amount of time that a victim can be
assumed able to survive in a toxic atmosphere above the PEL/TLV?
15 minutes
What material is used to construct the majority of
MC-306/DOT-406 cargo tank trucks?
Aluminum
What is the minimum number of pointed, long-handled
shovels needed when constructing a dike?
Three
What can be used to estimate the flammable region of the vapor cloud of spilled LNG?
White cloud
What should be used to stop a chime leak?
Chemical patch
Who always has the final say on Go/No Go when entering a toxic atmosphere?
Person taking the risk
What should be developed if contamination is found that
will require specialized clean up?
Written remedial action plan
Within what time period did flashover of the entire 30,000 square foot (2787 square meter) vacant shopping center with reactive chemicals in Puyallup, Washington occur during the full-scale test fire?
2 minutes
What is a useful guide and template for an IC to structure
mitigation efforts?
ICS 208
What time period constitutes the present events the IC
will need to evaluate?
10-15 minutes in the future
Which is a better respiratory option when working in a
confined space?
SAR
How many firefighter line-of-duty deaths have occurred
responding to LNG incidents since 1941 in the United
States?
0
What forms the interface between the hoisting equipment and the load?
Rigging
What principle should be kept in mind when planning
leak-control tasks?
Keep It Simple, Stupid
Within what distance from the vacuum truck, discharge of
the vacuum pump, or any other vapor source should strict
control of ignition sources be maintained?
100 feet
What must be established to implement the IC’s general
game plan?
Tactical objectives
What are the most difficult decisions responders must make
related to?
Life safety
Using the rule of thumb, if you begin with a pH of 1 on a
10 gallon spill and want to use dispersion to bring it to
a pH of 7, how many gallons of water will you need to add?
10,000,000
At what pressure can pressurized containers penetrate the skin?
5000 psi
What is used to perform dilution?
Water
What should be done if attempts to tighten the fusible
plug on a cylinder fails?
Cut plug off flush with the valve body
Absorption is most effective on spill of less than what
amount?
55 gallons
What is liquefied natural gas?
Methane in its liquid state
What is removed initially when performing a gas transfer
using product displacement with compressors?
Vapors
What is the first step taken when collecting and
processing evidence at the incident scene?
Photograph each piece as it was found
What is used on the ground to control the movement of
liquids, sludge, and solids?
Diking
Which type of dam is used to trap heavier-than-water
materials?
Overflow
At what level are strategies developed?
Command
Within what amount of time of direct flame impingement may BLEVE occur?
5 to 10 minutes
According to the “Handbook of Compressed Gases” nearly how many types of compressed gases are commonly shipped annually?
200
What type of alarm is normally tied to monitoring and
detection systems at bulk storage facilities?
Audible
Which foam concentrate is dependent on the difference in surface tension between the fuel and the firefighting
foam?
Aqueous film-forming foam
What is the minimum water application rate at the point of fire impingement during water cooling operations on a
pressure vessel?
500 gpm
What size should the patching device be in relation to the
breach as a minimum?
One half size larger
What type of transfer is a gas transfer always?
closed
How much of its strength has the steel in the LPG tank
lost as it reaches 1800 degrees Fahrenheit (982 degrees
Celsius)?
90%
Where must the first connection in all bonding operations
start?
At the damaged unit
What is the primary concern in a fire situation when
determining the type of stress on a flammable gas
container?
Thermal
What can be used to help you understand what is causing you to take action?
Map of the scene
Where is the rupture disk piped to allow the release of
vapors under normal operating conditions?
Vapor space
What is the first thing that needs to be done when a bung
leak is encountered?
Stand the drum so that the opening is at the top
About how many gallons of LNG will vaporize when one
gallon of water is sprayed on the LNG pool?
2
Within what distance of the failed container can BLEVEs of bulk containers and process vessels produce severe fire and fragmentation risks?
3000 feet (914 m)
What is a consideration if the container being offloaded
is a liquid cargo tank truck?
Position of the baffle holes
Which type of fire is unlikely for an LNG storage tank?
Jet
What is the heart of fire protection systems protecting
bulk storage facilities?
Reliable water supply
What should precede a successful offensive containment
operation?
Reconnaissance
Which cargo tank truck should never be uprighted while
loaded?
MC-306/DOT-406
What should be done when water streams being applied to exposures inside a diked area no longer produce steam at the point where water contacts the hot steel surface?
Shut down the water temporarily
How must emergency responders visualize the emergency to be able to produce good outcomes?
Chronological sequence of events
How many emergency responder line-of-duty deaths were caused by 16 major hazmat transportation related incidents from 1968-1978?
51
What amount of time does NFPA 11 recommend foam be applied to a flammable liquid spill fire?
15 minutes
What is NOT a key characteristic of alcohol-resistant
AFFF?
Should be plunged into the fuel
Which OSHA standard covers hazardous waste operations and
emergency response?
1910.120
What is the maximum spill size that many responders
recommend performing neutralization on?
55 gallons
What function does offloading the container serve?
Reduce stress on the container
What is required to decrease the risk of fire spread from
tank-to-tank at a bulk storage facility?
Spacing
Which statement about dispersants is NOT true?
They neutralize substances
What are considered the easiest to contain?
Dusts
What class foam do first responders use on flammable liquids?
Class B
Since what year has vent and burn been accepted as a
usable option?
1982
Which entries in the organization section of the ICS 208
worksheet are mandatory?
5 & 8
What type of loading process is normally used when cargo tank trucks are being loaded with flammable liquids?
Bottom-loading
What is the most common ethanol blend being transported by rail today?
E95
What is the controlled release of a material to reduce and
control the pressure, and decrease the probability of a
violent container rupture?
Venting
Who historically performs successful technical rescues?
Operations-level responders
What is the number one mission at a hazmat incident?
Life Safety
What material is used to manufacture a salvage cylinder?
Carbon steel
With which containment process is there no increase in the volume of waste materials?
Vacuuming
What must you be able to control before extinguishing a
pressure-fed flammable gas fire?
Fuel supply
Which statement about fluoroprotein foam in NOT correct?
Cannot be used for subsurface injection
What can be used to make the slide-in overpacking method easier and safer for the responders?
PVC pipes
What was involved in the Roseburg, Oregon incident on
August 7, 1959?
Dynamite
What pH level of corrosives do federal and most state
regulations allow entry into storm drains when dilution is
being employed?
6 to 8
What is the second step taken to secure, characterize, and preserve the scene?
Place caution tape to limit scene access
How should the confined space be treated when air
monitoring is within acceptable limits?
Contaminated
Which is intended to be a more permanent confinement
method?
Retention
What concentration range with a flammable atmosphere is considered hazardous?
10 to 20%
What will happen to the operating pressure as soon as the water begins to flow?
Drops
What is used on the ground to control the movement of
liquids, sludge, and solids?
Diking
Class B foam intended for hydrocarbon fires will not be
effective for gasoline-ethanol mixtures above what level?
10%
What often leads to loss of site control?
Maintaining a weak perimeter
In which mode of operation is the goal to quickly control
or mitigate a problem?
Offensive
What size should the patching device be in relation to the
breach as a minimum?
One half size larger
How often should public protective actions be monitored?
Throughout the incident
What is the baseline for hazmat decision making and should be the option against which all strategies and tactics are compared?
What will happen if I do nothing?
What is NOT part of the essence of the risk evaluation
process?
Determine political problems
Based on historical data, where will the cargo tank truck
be resting in a rollover incident?
Side
Which of the following affects the effectiveness of the
compressor during a gas transfer?
Ambient temperature
What should be the minimum accepted hazardous
classification rating of any electrical equipment used
around flammable liquids or vapors?
Class 1, Division 2
What ground level has been established by the National
Electrical Code for residential purposes?
<25 ohms
Which tactic is a chemical process confinement process?
adsorption
What are the conductive objects connected to when
performing grounding?
The ground
What rule about the compatibility of Class B foams is
misstated?
Different kinds of foam concentrates can be mixed during
proportioning
How many escape routes should be planned during product
removal operations?
Two
Where should the receiving tank be loaded when dealing
with MC-331 cargo tank trucks in LPG service to minimize the pressure build up in that tank?
Spray fill
What does bonding and grounding give a pathway to travel to earth?
Static charge
Which item numbers on the ICS 208 worksheet lists the
instruments that will be used to monitor for chemicals?
20-23
Which of the following is NOT an element in developing an effective plan of action by the IC?
Tactical objectives
What statement about the operational considerations during a pressure transfer is NOT correct?
Requires tank containing the product be vented and the
receiving tank be airtight
What may be a reason to perform controlled burning at a
reactive fire?
Large amount of contaminated runoff
What action is taken when operating in nonintervention
mode?
Isolate the area
Fires involving ethanol mixtures in what range will assume the burning properties of a polar solvent?
10 to 15%
Who does NOT typically conduct the safety briefing?
Staging Officer
What should be tried if the leak on a pressurized
container continues after the valve is closed?
Tighten packing nut on the valve
What happens when vapor is removed from an LNG tank?
It cools
How many gpm does an atmospheric storage tank from 100 foot to 150 foot diameter require for water cooling
operations?
1000 gpm
What is the primary concern in a fire situation when
determining the type of stress on a flammable gas
container?
Thermal
What must the IC be able to do first to begin the process
of assembling a site safety and control plan?
Understand the nature of the problem
What concentration of alcohol-resistant AFFF is most
commonly available?
3% hydrocarbon/3% polar solvent
What on the pressure vessel should cooling water be
applied to?
All surfaces above the liquid level
What must occur before product removal operations can
commence?
Incident stabilization
What percentage of the accidental discharge will an
emergency scrubber normally be capable of filtering or
neutralizing?
100%
What should the minimum angle of the diversion barrier be for a fast-moving spill?
60 degrees
What should be used to stop a chime leak?
Chemical Patch
What is used by most wreckers to life cargo tank trucks?
Nylon straps
What significant risk does an oxygen-enriched atmosphere present rescuers?
Increased risk of fire
Which tasks involve the “hands on” work?
Operational
What will affect the likelihood that the problem will be
confined to its present size?
Quantity involved
What function does offloading the container serve?
Reduce stress on the container
Above what concentration do hydrogen peroxide hazards increase?
52%
What method is most commonly used for decontaminating personnel?
Dilution
How many wash-and-rinse stations are typically involved in technical decontamination?
One to three
Which type of contaminant may be removed from a vehicle on site and then the car be driven to an off-site car wash for a second, more thorough washing?
Vapors
What is the greatest challenge in a mass decontamination operation?
People management
What is the minimum ambient temperature that should be
maintained in the warm place that victims are moved to
after mass decon in cold weather?
70 degrees Fahrenheit (21 degrees Celsius)
How long should responders wait before entry to allow the aerosol to settle to significantly reduce the risk of
exposure?
30 to 60 minutes
Which one of the following is NOT one of the ways to
reduce or eliminate contamination via mass decon?
Absorption
Which factor that influences permeation is NOT true?
High-viscosity solids permeate faster than gases
What level chemical splash protective clothing should
responders use during mass decontamination operations?
Level B
What makes handling and disposal of contaminated PPE
easier during technical decontamination?
Large trash bags
During which decontamination phase is the amount of the surface contaminant significantly reduced?
Gross
Which is an ideal substance for the neutralization of
alkaline corrosives in emergencies?
Citric acid
What is the process of destroying all microorganisms in or on an object?
Sterilization
What should be used to establish a gross decon area in
emergency decontamination operations?
water
Which type of decontamination usually involves using water or soap and water to decon a large number of people?
Mass
What is the smallest size particle that HEPA vacuums can
capture?
0.1 microns
How long after rest and oral hydration should vital signs
be taken to ensure adequate recovery from the stress of
entry?
10 to 15 minutes
In what form are most flammable contaminants found?
Liquid
Who should be brought to the scene to assist with
decontamination when animals have been injured from
exposure to hazardous materials?
Veterinarian
What should be used on boots before stepping into decon showers?
Brushing
What is the maximum number of contaminated responders are allowed in a wash and rinse station at a time?
What is the maximum number of contaminated responders are
allowed in a wash and rinse station at a time?
What should be cleaned second when performing
decontamination of injured personnel?
Open wounds
What detectable levels does decontamination, and cleaning of equipment and fixed facilities result in?
ppb
What should the Decon Leader use to ensure that important items are not overlooked?
Formal checklists
What is the chemical action involving the molecular
breakdown of protective clothing material due to chemical contact?
Degradation
What is the first stop during technical decontamination?
Tool drop
What can be used to mark the location of the decon
corridor entrance in the Hot Zone during night time
incidents?
Colored light
If possible, how many decon members should staff each
station that will require entry personnel be scrubbed?
two
Which is less likely to be a contaminant of animals?
Radiological release affecting a large area
What should be the last apparatus in the line up when
using a multiple engine/ladder apparatus response for mass
decontamination?
Aerial
With which of the following is secondary contamination a
greater problem?
Liquids
Who is most often responsible for establishing the mass
decon corridor at a mass casualty scenario involving
hazmats?
First-due fire units
How many levels from the PPE being used by the Entry Team can the Decon Team usually operate safely in?
One level down
What flow rate does the “deluge” head on a safety shower deliver?
30 to 50 gpm
What regulation must be followed when marking and labeling hazardous waste containers at the scene?
DOT 215K
What is the minimum amount of time the water flush should last when performing emergency decontamination with corrosives that have made skin contact?
20 minutes
What ultimately speeds up hospital patient care during a
hazmat incident?
Decontamination
What is the first rule of decontamination?
Avoid contamination
What is the last step taken during technical
decontamination?
Proceed to the rehabilitation area
Which principle to prevent contamination is NOT correct?
Remove your respiratory gear as soon as possible
Which has been shown to be the most effective during mass decon operations?
High volume, low-pressure water streams
What percentage of contaminants can be removed by
undressing according to studies by the U.S. Army Soldier
and Biological Chemical Command?
80%
What is the most effective method of preventing employee chemical exposure at decontamination operations at a fixed facility?
Remove air contaminants at the source
Which of the following should chemical degradation NOT be used on?
Chemical protective clothing
To what level should the Decon Leader and the Decon Team be trained as per NFPA 472?
Hazardous Materials Technician level
Which disinfectants are the most practical for field use?
Chemical
Which statement about performing mass decontamination on nonambulatory victims is NOT correct?
Allow clothing to collect underneath the victim
What is the final step in isolation?
Packaging
What percent of the first reading will radiation levels be
after the passage of 7 half-lives?
1%
At what level are permeation contaminants absorbed into a material?
Molecular
Which of the following methods has limited application for decontaminating personnel?
Absorption
What can be used to organize the decon area?
Tarps
Which term means that something is “dirty”?
Contamination
Approximately how many people should basic mass decon practice evolutions begin with?
20 to 40 people
Which type of decontamination is performed with or without the establishment of a decon corridor?
Emergency
What is the relationship between the hazard area and
outside the hazard area at fixed facilities to minimize
the spread of contaminants?
Negative pressure inside/positive pressure outside
What are the most common areas to be contaminated by
direct contamination?
Gloves
What term is used to describe the ability of the
biological material to cause disease?
Virulence
What is the process by which people, animals, the
environment, and equipment are subjected to or come in
contact with a hazardous material?
Exposure
What is the most important factor in eliminating
radioactive material contamination problems?
Avoid contact with the material
What priority level should be assigned to ambulatory
victims?
Priority 3
Initially what should be done with waste as a general rule
at the hazmat scene during clean-up?
Contain it
What can be done to help keep a K-9 assigned to search and rescue settled during decontamination operations?
Keep the handler near
At which decon station will you need to physically contact your customer?
Doffing
How wide should the lane be that is created by apparatus for mass decon?
12 to 16 feet
Which of the following is heating NOT primarily used for
during decontamination operations?
Personnel
What is the maximum amount of time that victims exposed to chemical warfare agents should be washed according to studies that have been conducted?
5 minutes
What is considered an ideal water temperature for use in
mass decon operations?
70 degrees Fahrenheit (21 degrees Celsius)
Which emitters present both the possibility of becoming
airborne and creating high radiation levels near the
surface of the contaminated area?
Beta
Which statement about decontaminating equipment is NOT correct?
Any responder can supervise equipment clean-up operations
Which criteria for evaluating decontamination
effectiveness is NOT correct?
Few personnel were exposed to concentrations above the
TLV/TWA
What must be done before placing decontaminated hose back into service?
Pressure test
During what period of a pregnancy are embryotoxic
contaminants most dangerous?
First eight to twelve weeks
What can be used to place inner gloves into when doffing them during technical decontamination?
Plastic bags
What should be kept separate during technical
decontamination to protect it from damage?
Monitors
For which type of hazard is there currently no practical
way to determine the effectiveness of field
decontamination?
Etiological
