Hazmat Study Guide 2023
Hazmat Study Guide 2023 Quiz
Test your knowledge of hazardous materials response with the Hazmat Study Guide 2023 Quiz! This comprehensive quiz covers essential safety regulations, techniques, and equipment needed for effective hazardous materials management.
- Evaluate your understanding of critical safety practices.
- Prepare for potential certification or training assessments.
- Enhance your readiness for emergencies involving hazardous substances.
Above ground storage tanks ASTs Are
Pressurized
Non-pressurized
Either pressurized or non-pressurized
Neither pressurized or non-pressurized
How is flammable range related to the relative danger of a substance?
The higher the bottom number, the more dangerous the substance
The narrower the range, the more dangerous the substance
The wider the range, the more dangerous the substance
There is no relationship between these quantities
In hazardous materials pre -incident planning, once the agency has identified the threat’s in its jurisdiction, what should the agency do next?
Take no further action
Determine how it will respond
Run full-scale drill exercises
Run table-top drill exercises
The following is a list of actions that might be taken on a hazardous materials incident. Which action is appropriate for operations level responders but not for awareness level responders?
Avoid contact with the material
Take a defensive Action
Eliminate ignition sources
Use the ERG to identify the material
What is a proximity suit designed for?
Limited exposures to high temperatures
Protection from radiological hazards
Protection from both chemical and heat hazards
Hazardous materials support work, such as decontamination
Weakness, dizziness, and sweating are typical of heat _______.
Exhaustion
Stroke
Cramps
Exposure
For hazardous materials responders, what is the most important element of the personal protective equipment?
Vapor protection
Respiratory protection
Splash protection
Thermal protection
When choosing a route along which to respond to a reported hazardous material incident, how should the approach be planned?
From upwind and upgrade
From upwind and downgrade
From downwind and upgrade
From downwind and downgrade
The number of people that one person can supervise effectively is known as:
Unit integrity
Division of labor
Unity of command
Span of control
What does the acronym CBRN refer to?
Strategic priorities at a hazardous materials incident
Signs and symptoms of chemical exposure
Types of terrorist attacks
Pre-entry checklist items
Which tanker is used to transport ammonia, butane, or propane?
MC-306
MC-312
MC-331
MC-338
When atmospheric condition at a hazardous materials incident are unknown, what is the minimum level of respiratory protection for operations level responders?
Positive pressure SCBA
Air-purifying respirator (APR)
HEPA filter mask
Power air-purifying respirator (PAPR)
A gasoline tanker has overturned in a tunnel and is spilling onto the highway. What level of hazardous materials incident is this?
Level I
Level II
Level III
Level IV
Which is a containment tactic?
Plugging
Damming
Diking
Vapor control
What type of dam should be constructed for material that has a specific gravity greater than 1?
Underflow
Overflow
Separation
Gravity
Term for pressure exerted by the vapor of a liquid until the vapor and the liquid are in equilibrium?
Vapor density
Vapor pressure
Head pressure
Head density
Defensive action?
Plugging
Patching
Diking
Product Transfer
Form of decontamination typically consists of removing contaminated clothing and dousing the victim with large volumes of water.
Technical
Emergency
Mass emergency
Formal
____ is critical factor in determining the appropriate level of PPE?
The experience of the firefighter on hand
The availability of the protective equipment
The physical state and characteristics of the material
The responders experience with the material
According to the ERG classification system, what is the level of protection afforded a suit that fully encapsulates the rescuer and SCBA
A
B
C
D
Which item will be needed to build a dam in a flowing stream that is contaminated with a hazardous liquid?
Concrete
Rebar
PVC-pipe
Rip-rap
At what PH is a substance neither acidic nor basic?
0
1
7
15
You have dug a shallow pit to collect and hold a liquid. Which control tactic is this?
Containment
Detainment
Diking
Retention
On hazardous materials incidents, OSHA does not permit the IC and the ______positions to be filled by the same person.
Operation sections chief
Planning section chief
Safety officer
Hazardous materials branch director
How much water is needed to effectively dilute a hazardous material?
A volume equal to twice that of the material to be diluted
A volume equal to the three time that of the material to be diluted
A volume equal to the four time that of the material to be diluted
It varies, depending on the material to be diluted
When should the pre-entrance medical monitoring be completed?
Within the last year
Just prior to donning PPE
When first reporting for duty
Immediately upon arrival
Who is qualified to use high temperature PPE?
Any firefighter
Firefighters who are specifically trained in its use.
Any responder trained and qualified to work in a encapsulated suit
Hazardous materials specialists and technicians only
What can be used to determine the pH of a hazardous material?
PH paper
Organic paper
M-9 paper
M-9 tape
______is to liquid as vapor density is to gases.
Specific gravity
Volatility
Viscosity
Molecular weight
On which type of hazardous materials incident should early responders establish a plan for decontamination?
On incidents involving gases or vapors
On incidents where direct contact with material is likely
On incidents involving offensive operations
On all incidents
The level of protection that structural firefighting protective clothing provides at a hazardous materials incident is best described as:
Excellent
Good
Limited
Nonexistent
In addition to extinguishing flammable liquid fires, what are class B foams used for on hazardous materials incidents?
To break down the surface tension of fuels
As an emulsifier for heavy hydrocarbon fuels
To suppress vapor production of un-ignited fuels
As a decontamination agent
What chemical-protective clothing is a single-piece garment that totally encloses the wearer?
Splash suit
Encapsulating suit
Proximity suit
Chemical-protective suit
What term refers to the process where unstable atoms of an element decay to a different state emit excess energy in form of particles or waves?
Electromagnetism
Radioactivity
Covalence
Molecular
What is the technique of redirecting the flow of a liquid away from an area?
Diversion
Damming
Diking
Detainment
Once all response criteria is met, including the safety team (RIT team) a single responder can work in the Hot Zone.
True
False
If a victim is twitching , what agent would you suspect the victim has been exposed to?
Nerve
Blister
Biological
Choking
What is the temperature at which a liquid continuously gives off vapors?
Evaporation point
Flash point
Boiling point
Condensation point
What does MC-306 refer to?
The tag on gas pumps that says “this device must start on zero”
The grounding harness woven into gasoline-dispensing device hoses
The test all gasoline products undergo
The familial oval-shaped highway gasoline tanker
Corrosives can be broken down into:
Polar and non-polar
Chlorine-based and hydrogen-based corrosives
Acids and bases
Liquids and solids
Sulfur mustard and lewisite are examples of:
Cyanides
Irritants
Nerve agents
Blister agents
What do tube trailer carry?
Lengths of pipe
Lengths of rod
Cable
Compressed gas
What term refers to when a person’s internal body temperature falls below 95F
Hypoglycemia
Hypothermia
Hyperactivity
Hypertempura
How is the lid on an open head drum fastened?
Hooks welded to the sides grip it
Crimping the lid flange over the drum lip
By being twisted onto a thread encircling the body
By a ring and tightening hardware
When hazardous materials are burning and there is a threat or catastrophic container failure, (BLEVE), or other explosion, the safest and best tactical option is. (pg.352)
Withdrawal
Exposure Protection
After using water streams for vapor dispersion, responders must. (pg. 614)
Confine and analyze runoff water for possible contamination
. Monitor ambient air downwind for 24 hours after dispersion is complete
What information about a railroad tank car is shown by the capacity stencil? (pg. 261)
The volume of the tank car tank
The material carried
The unique identity of the tank car
The approved hazard class
Which statement describes mass decontamination for nonambulatory victims? (pg. 503)
The decon process for nonambulatory victims at mass casualty incidents will be more of a gross decon process, conducted quickly
Decontamination nonambulatory victims will be conducted in the hot zone, before they are transported to medical station.
Nonambulantory victims have priority over ambulatory victims and will be decontaminated first regardless of having sufficient personnel.
What physical property determines the ease with which a product will flow and is greatly affected by temperature? (pg. 152)
Polarity
Viscosity
Sublimity
Miscibility
The mission briefing of entry teams should be conducted before the PPE donning process begins in order to. (pg. 464)
Ensure that all members are attentive and there are no distractions
Give team members the opportunity to withdraw from the assignment.
What must be established before any PPE-equipped personnel enter into hazardous zones to conduct a rescue (pg.593)
A decontamination station
The operations center
A rehab and medical monitoring area
When evacuation is needed, responders should alert the public of the need to evacuate and tell them. (pg. 344)
Where they should go
When they can return
What is the process of controlling the flow of a spill and capturing it at some specified location? (pg. 607)
Confinement
Containment
Since oxygen levels vary at different elevations, oxygen sensors should be zeroed in. (pg. 556)
Clean air at the elevation of the incident
Pure oxygen
What atmospheric condition should responders monitor concurrently when using combustible gas indicators. (CGIS)?
Oxygen levels
Ambiant temperature
Which category of homemade/improvised explosives are unstable during the manufacturing process and also as a finished product, but can be produced almost anywhere since specialized equipment is not required for their manufacture? (pg. 378)
Nitrate-based explosives
Chlorate-based explosives
Bio-chemical explosives
Tactical and/or task supervisors must provide progress reports to the IC using. (pg. 352)
Pre-determined communication procedures
Established hand signals
Which statement describes a unified command structure?
Several individuals may be working in command, but only one person will ultimately answer for the operation.
The authority for direction of tactics depends on the distribution of training and ability and need to apply them to the required task.
All agencies that have a jurisdictional responsibility at the incident establish unique objectives and tactics in their area of specialization.
Once responders know the actual concentration or dose of the materials present, they can reference the ______to determine whether the materials have sufficient concentrations or doses to make them hazardous.
Reactivity
Exposure limits
Explosive limits
Why must responders have some form of detection instrumentation to test presence of radiation and contamination, particularly at potential terrorist attacks?
Radiation detection instruments may help alert responders to secondary explosive devices.
Any exposure to gamma radiation requires that responders be decontaminated immediately
Combustible gas indicators (CGIs)will not provide accurate readings in the presence or radiation
Responders may not initially know that the scene may expose them to radiation or contamination
Who should be contacted when the gas has been shut off or when any emergency involving natural gas occurs in its service area?
The local utility company
The local law enforcement agency
The local law enforcement agency
When involved in accidents, High Hazard trains (HHFT) transporting multiple low-pressure tank cars Containing ethanol, crude oil, and other class 3 products may.
Trigger uncontrolled polymerization reactions
Release their products, ignite, and violently rupture
Develop multiple small leaks that may go undetected by monitoring devices
One of the disadvantages of dilution as a technical decontamination process is that...
It is difficult to decon large pieces of equipment/apparatus
It is limited to the decon of tools and equipment, not people.
The process may create large amounts of contaminated runoff.
At what temperature does a liquid or volatile substance give off enough vapors to support continuous burning?
Fire point
Flash point
Lower Flammable Limit (LFL)
Upper Flammable Limit (UFL)
Which route of exposure results from eating or swallowing materials through the mouth?
Ingestion
Inhalation
Injection
Sanitization, disinfection, sterilization, neutralization, and solidification are examples of ___ decontamination.
Mass
Physcial
Chemical
Biological
The Purpose of emergency decontamination is to....
Collect contaminants and runoff to protect the environment
Collect contaminants and runoff to protect the environment
Remove the threating contaminant from the victim as quickly as possible without regard for the environment or property protection.
How should responders identify decontamination corridors?
By issuing verbal instructions to the victims
Responders stationed at the entry and exit points to guide victims
Barrier tape, Safety cones, salvage covers or similar indicators
What is the best way to ensure PPE always preforms to expectation?
Return PPE to the manufacturer for reconditioning after use
Follow a standard program for inspection, proper storage, maintenance, and cleaning.
Which confinement method is preformed to control the flow of liquid from the point of discharge?
Blanketing
Liquid dispersion
Damming, diking, diverting, and retaining
Under NIMS-ICS command organization, who is the officer at the top of an incident chain of command and in overall charge of a hazardous materials incident?
The Incident Commander (IC)
The Hazardous Materials Technical Lead
The Safety Officer
What Practice(s) will help responders stay safe when conducting detection and monitoring?
Monitoring for vapors gases at breathing level
Recalibrating instruments periodically through the incident
Moving slowly, making allowances for instruments with significant response times
When should medical monitoring be conducted for responders wearing PPE and entering the warm and hot zones?
Both pre-entry and post-entry
After leaving these zones (Post-entry)
Before entering these zones (Pre-Entry)
When responders show signs of thermal stress
Which component of post-incident analysis ensures successful implementation of improved response?
Incident reports
Equipment exposures
Follow-up analysis or training
What should responders do to preserve evidence and assist law enforcement?
Avoid disturbing area not directly involved in rescue activities
Organize responders to walk a grid pattern to search for possible evidence
Preserve confidentiality by refraining from taking photographs, videos, or making sketches of the scene
With regard to the chemical attacks, toxic industrial materials (TIMs) may pose a for greater threat than chemical warfare agents because...
TIMs are produced in very large quantities (multitone) and are readily available.
Many TIMs are more lethal than nerve agents
TIMs are hard to identify when dispersed
To Avoid contamination, you should not sit or kneel directly on the ground in CPC because ground contact may increase your chances of contamination and may...
Dislodge your respiratory protection
Cause chafing or abrasion on the suit
Initiate a mayday rescue response
What must be part of the operational plan in case responders lose radio communication or operate in an atmosphere that does not allow radio communications?
A signaling system using police style whistles
A communications relay of responders spaced between the hot zone and the command post
A back-up communications plan, such as hand signals
What is the maximum capacity of intermediate bulk containers?
Not more than 3m 3 (3,000L, 793 gal, or 106 ft 3)
From 55 Gallons (208L) to 100 Gallons (379L)
From 5 gallons (19L) to 20 gallons (76L)
When determining the appropriate PPE ensemble or respiratory equipment and clothing, consider.
The responder’s training and estimated rehab time
The Hazards present and the actions that need to be preformed
The ambient temperature and aspect of the work zone (sun, shade, or indoors)
In the event of an overt biological attack or incident, responders should focus on.
Isolation and containment of the biological agent
Destroying the agent and dissemination device
Treating exposed individuals as quickly as possible
Per the ERG, why is the initial isolation zone one mile (1.6 km) for a pressure tank railroad car involved in fire?
The tank may BLEVE
The contents will displace oxygen
The contents pose significant respiratory hazards
What is the term for the minimum temperature to which a fuel in air must be heated to initiate self-sustained combustion without initiation from an independent source?
Fire point
Flash point
Autoignition temperature
What best describes the behavior of solids?
Solids expand rapidly when released, and may travel to affect a wide area
Solids typically will remain in place unless acted upon by exterior forces, such as wind, water, and gravity
Solids will expand and move according to surface contours and topography
The process of taking in materials through a puncture of your skin is the route of exposure known as
Injection
Inhalation
Absorption
The color change in pH paper attached to a responder’s clothing or equipment indicates.
The need to evacuate and reevaluate the situation
A leak in the SCBA facepiece seal
A new accelerating release
To avoid any possible confusion when command is transferred, _____ must announce the change.
The former IC
The emergency service dispatcher
The incoming IC
The purpose of gross decontamination is to…
Contain and control all contaminated materials for treatment and disposal.
Change the pH of a containment, raising or lowing it toward 7 (Neutral) on the pH scale.
Have a significant reduction of the amount of surface contamination as quickly as possible
Generally, which victims at a hazardous materials incident require the least amount of time to remove/rescue?
Ambulatory victims within the line of sight
Non-ambulatory victims within line of sight
Non- ambulatory victims not within line of sight
Radiological devices are sometimes referred to as dirty bombs because the contamination they spread could.
Cause large areas to become unusable
Harm a limited number of people over a long period of time
Result in an exceptionally large/powerful explosion and/or an electromagnetic pulse (EMP)
What must be done to protect people inside a structure (sheltering in place).
Close all doors, windows, heating, ventilation. And air conditioning systems
Eliminate ignition sources, such as pilot lights, cell phones and static electricity
Move people to an inside room with a supporting wall and cover them with blankets or a mattress
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