60 terms

Chapter 33: Hazardous Materials: Response Priorities and Actions

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The placement of impervious materials to form a barrier that will keep a hazardous material in liquid form from entering an area is called:

A: diversion.
B: retention.
C: damming.
D: diking.
D: diking.
Does transportation to temporary evacuation areas have to be arranged?

A: No, all evacuees work out their own way of moving to the designated areas.
B: No, not unless special transportation is required, such as out of a canyon.
C: Yes, and for all populations, including those with disabilities.
D: Yes, but only to the extent of providing people with a transportation agency to call.
C: Yes, and for all populations, including those with disabilities.
Which of the following detection methods/equipment is used to detect corrosivity on a hazardous materials incident?

A: Geiger counter
B: Four-gas monitor
C: Photoelectric ionizer
D: pH meter
D: pH meter
Which type of action is patching a breached container?

A: Confinement
B: Containment
C: Correction
D: Constrainment
B: Containment
When should fires be extinguished on pressurized gas cylinders?

A: On every incident
B: When the leak can't be controlled
C: When firefighters are positive they can control the leak
D: When the material is heat reactive
C: When firefighters are positive they can control the leak
What is one way of protecting exposures at a hazardous materials incident?

A: Evacuating residents
B: Establishing a decontamination corridor
C: Creating an incident action plan
D: Looking up the material in a table of initial isolation distances
A: Evacuating residents
Creating an area to hold hazardous materials is called:

A: damming.
B: retention.
C: diversion.
D: diking.
B: retention.
Which phase of a hazardous materials incident begins when the imminent danger to people, property, and the environment has passed or is controlled, and cleanup begins?

A: The secondary survey phase
B: The definitive phase
C: The recovery phase
D: The mitigation phase
C: The recovery phase
Who determines which offensive or defensive actions will be taken at the scene of a hazardous materials incident?

A: Owner of the material
B: Mayor
C: IC
D: Hazmat officer
C: IC
What is the technique called wherein the concentration of a vapor cloud is lessened by spreading it out?

A: Gas retention
B: Liquid sublimation
C: Mechanical condensation
D: Vapor dispersion
D: Vapor dispersion
How are vapors suppressed?

A: By applying a blanket of foam
B: By stretching a polyethylene tarp or salvage cover over the liquid
C: By setting up fans or fog streams
D: By stretching a non-polyethylene tarp or salvage cover over the liquid
A: By applying a blanket of foam
Is a plan of shelter-in-place related at all to the toxicity of the hazardous material involved?

A: No, these concepts are unrelated and unaffected by each other.
B: Yes, the more toxic it is, the more likely to shelter-in-place.
C: Yes, shelter-in-place is only appropriate for moderately toxic materials.
D: Yes, the more toxic it is, the less likely to shelter-in-place.
D: Yes, the more toxic it is, the less likely to shelter-in-place.
How does the complexity of search and rescue in a hazardous materials incident compare to a structure fire?

A: It is less complicated with hazardous materials incidents.
B: It is more complicated with hazardous materials incidents.
C: They are about equally complicated.
D: There is no relationship.
B: It is more complicated with hazardous materials incidents.
What is the process called in which a material is applied that will soak up and hold a hazardous material as a sponge holds water?

A: Osmosis
B: Abduction
C: Adduction
D: Absorption
D: Absorption
______ is used when a liquid is flowing in a natural channel or depression and its progress can be stopped by blocking the channel.

A: Retention
B: Damming
C: Diversion
D: Diking
B: Damming
Which type of dam should be constructed when a material has a specific gravity greater than 1?

A: Gravity dam
B: Flow-through dam
C: Underflow dam
D: Overflow dam
D: Overflow dam
Why is absorption a difficult technique for operations-level responders at a hazardous materials incident?

A: Because it requires being in close proximity to the hazardous material
B: Because intrinsically safe tow vehicles are hard to come by
C: Because the application must be done in a careful, technicallycorrect manner
D: Because it requires Level A entry suits to perform
A: Because it requires being in close proximity to the hazardous material
When conducting atmospheric monitoring, what receives the highest priority?

A: Toxicity
B: Flammability
C: Corrosivity
D: Radiation
D: Radiation
What is one hazardous material that might be allowed to be consumed in a fire, because putting the fire out could cause a toxic runoff?

A: Pesticide
B: Sodium
C: Chlorine
D: Radioactive solids
A: Pesticide
Why should foam be applied so that it flows down across a liquid?

A: So as not to directly upset the burning surface
B: Because liquid agitation will increase the temperature
C: Because agitation of the liquid can release more vapors
D: Because two liquids can explode if they impact forcefully
A: So as not to directly upset the burning surface
What, if any, is the mathematical formula for calculating how many people can be evacuated at a given time?

A: The number of tens of people times two hundred times six
B: There is none.
C: The square of the number of people divided by the time, in seconds
D: The number of people divided by the time, in seconds, times fifteen
B: There is none.
What term describes actions that stop the hazardous material from leaking or escaping from its container?

A: Confinement
B: Containment
C: Determinants
D: Definitives
B: Containment
What is the term for attempting to keep the hazardous materials on the site or within the immediate area of the release?

A: Constrainment
B: Constricture
C: Containment
D: Confinement
D: Confinement
What is one factor that must be evaluated when considering containment actions at a hazardous materials incident?

A: Construction of adjacent exposures
B: How much it would cost to undertake a containment operation
C: What age group the exposed population falls into
D: What the likely duration of the incident would be without intervention
D: What the likely duration of the incident would be without intervention
In the sequence of evacuation, when is the safe area selected and arranged?

A: Concurrently with the issuing of the evacuation order
B: Not until everyone is first out of the danger area
C: Within thirty minutes of giving the evacuation order
D: Before the evacuation order is given
D: Before the evacuation order is given
What is one of the critical actions that must take place when an incident involves terrorist or criminal activity?

A: Notify DHS.
B: Notify appropriate law-enforcement agencies.
C: Notify the DOT.
D: Notify FEMA.
B: Notify appropriate law-enforcement agencies.
What is an alternate technique for reducing vapor formation that works with some hazardous materials?

A: Cautiously bringing the material to a high acidity
B: Placing floating booms to subdivide the surface area
C: Mixing in bicarbonate of soda
D: Reducing their temperature
D: Reducing their temperature
Foam should be gently applied or:

A: applied in a circumferential jet.
B: bounced off an adjacent object.
C: lobbed high in the air as a solid stream.
D: jetted in under force near the middle.
B: bounced off an adjacent object.
What is the term that collectively describes areas in terrain or places in a structure where materials such as liquids and powders or solids can be contained?

A: Geometric ridges
B: Defensive loci
C: Natural control points
D: Topographical anchor points
C: Natural control points
Why is controlling liquid spills normally difficult?

A: Liquids evaporate too quickly.
B: The liquid takes the shape of their container or surroundings.
C: Liquids expand upon contact with air.
D: Liquids don't evaporate.
B: The liquid takes the shape of their container or surroundings.
Which of the following detection methods/equipment is used to detect oxygen levels on a hazardous materials incident?

A: Geiger counter
B: Four-gas monitor
C: Oximeter
D: pH meter
B: Four-gas monitor
When there is fire associated with a hazardous materials incident, what should be considered first and foremost?

A: How to evacuate any endangered residents
B: Identifying the material involved
C: Putting the fire out immediately
D: Whether the fire or the hazardous material is putting people in more danger
B: Identifying the material involved
What is one concern with using dilution at a hazardous materials spill?

A: Chemical remedies will not be anticipating a diluted solution of the hazardous material.
B: Once water is added, the identity of the hazardous material may be masked.
C: It increases the volume of the spill and may overwhelm containment measures.
D: Once water is added, it cannot be removed.
C: It increases the volume of the spill and may overwhelm containment measures.
Where, in the list of response priorities at a hazardous materials incident, does evacuation fall?

A: It is the very first.
B: It is the very last.
C: It is one of the last.
D: It is one of the first.
D: It is one of the first.
What is a potential risk firefighters should expect to see at the scene of potential crime or terrorism incidents?

A: Firefighters will have to interview witnesses.
B: The presence of secondary devices
C: It is PPE incompatible.
D: FBI will take over the scene.
B: The presence of secondary devices
What is the technique called for protecting people from a hazardous materials incident by keeping them in a safe atmosphere without evacuating them?

A: Zone exclusion
B: Straddling the warm zone
C: Modular local protection
D: Shelter-in-place
D: Shelter-in-place
If foam is applied to a hazardous materials spill, for fire suppression or vapor suppression, what happens to the volume of the spill?

A: It remains the same.
B: It depends whether the substance is polar or non-polar.
C: It decreases
D: It increases.
D: It increases.
Which protective action entails the use of water or another liquid to weaken the strength or concentration of a hazardous material?

A: Adsorption
B: Suppression
C: Dispersion
D: Dilution
D: Dilution
Where are remote shut-off valves normally located on MC-306 cargo tanks?

A: Front driver's side
B: Front passenger's side
C: Cab of the vehicle
D: Underneath
A: Front driver's side
What is one mechanism for dispersing vapors?

A: Starting a fire of wood in the middle of the cloud
B: Hose streams on fog settings
C: Driving vehicles through the vapor cloud
D: Rolling SCBA cylinders with their valves open
B: Hose streams on fog settings
Redirecting the flow of a liquid away from an area is called:

A: retention.
B: damming.
C: diversion.
D: diking.
C: diversion.
What is the primary concern at a hazardous materials incident?

A: Loss stoppage
B: Exposure protection
C: Search and rescue
D: Definitive mitigation
C: Search and rescue
Does evacuation have to involve some risks, if it is properly planned?

A: No, not unless the evacuation route itself is inherently dangerous, such as down an icy ladder.
B: Yes, in fact most evacuations kill and injure more people than the incident would have without any evacuation.
C: No, evacuation almost never involves any risk, even when thrown together hastily.
D: Yes, evacuation involves some significant risks, even if properly planned.
D: Yes, evacuation involves some significant risks, even if properly planned.
Which characteristic do shovels used in absorption operations at a hazardous materials incident need to have?

A: They need to be made of selenium-based alloys.
B: They need to be self-grounding.
C: They need to be pH neutral.
D: They need to be nonsparking.
D: They need to be nonsparking.
Which resource gives information on the necessary initial distances of evacuation for hazardous materials incidents?

A: NFPA 472
B: USFA Table 1.6
C: The Wilt evacuation distances wheel
D: The ERG
D: The ERG
What will determine the ability to evacuate an area and staff an adequate emergency shelter?

A: The local resources available
B: The determination of the IC
C: The toxicity of the material involved
D: The efficiency of the public notification
A: The local resources available
Vapor dispersion with fans or fog streams can only be attempted after:

A: the hazardous material is safely identified.
B: an opposing dispersing stream is ready.
C: a containment basin is dug.
D: the ground has been treated with lime.
A: the hazardous material is safely identified.
What is the key to a safe and successful emergency evacuation?

A: Money; evacuations are expensive
B: Favorable outcomes of luck
C: Local emergency planning
D: Limited travel distance
C: Local emergency planning
Is a plan of shelter-in-place related at all to the anticipated duration of the incident?

A: No, the shorter the incident, the less likely it will be to shelter-in-place.
B: Yes, the longer the incident, the more time the material has to permeate the structure.
C: Yes, shelter-in-place is only appropriate for long-term incidents.
D: No, the longer the incident is, the more likely it will be to shelter-in-place.
B: Yes, the longer the incident, the more time the material has to permeate the structure.
When people are being sheltered in place, what should be done with the ventilation system?

A: It should be set to evacuate.
B: It should be turned off.
C: It should be set to fresh air exchange.
D: It should be set to recirculate.
B: It should be turned off.
Which protective action involves shutting down systems or operating valves?

A: Remote system valves
B: Remote shut-off valves
C: Remote system valves
D: Remote tanker valves
B: Remote shut-off valves
In the context of sheltering-in-place during a hazardous materials incident, local emergency planning should address which types of facilities?

A: Those that would have large populations to evacuate
B: Those for which first-due response would exceed 15 minutes
C: Those with more than 8% door and window presence in the exterior walls
D: Those with bowstring truss roofs
A: Those that would have large populations to evacuate
Which of the following detection methods/equipment is used to detect radiation?

A: Geiger counter
B: Four-gas monitor
C: pH meter
D: Photoelectric ionizer
A: Geiger counter
Who determines when to terminate an incident?

A: FBI
B: Mayor
C: IC
D: Fire chief
C: IC
How should absorbent be applied to a hazardous materials spill?

A: From a distance, with shovels
B: By a hand-pushed lawn chemical broadcaster
C: From above by forestry plane drop
D: By a towed lawn chemical broadcaster
A: From a distance, with shovels
In perfect circumstances, which units of time would be required to measure the evacuation of residents?

A: Seconds
B: Hours
C: Minutes
D: Days
B: Hours
Which level of training is required to plug or patch a container?

A: Operations
B: Awareness
C: Technician
D: Incident commander
C: Technician
What is the BEST way to determine the area of evacuation and how far to extend actual evacuation distances?

A: Interview evacuees
B: Aerial photography
C: Detection equipment
D: Doppler radar
C: Detection equipment
What is the process called in which a hazardous material accumulates on the surface of a solid, forming a molecular film?

A: Osmosis
B: Absorption
C: Adsorption
D: Abduction
C: Adsorption
What is one factor that should be evaluated when considering undertaking containment operations at a hazardous materials incident?

A: What the construction is of any adjacent exposures
B: What the demographics are of any exposed population
C: What the molecular weight is of the material being released
D: What the maximum quantity is of material that can be released
D: What the maximum quantity is of material that can be released