Basic HAZ MAT 1

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Where does evacuation fall in the list of priorities at a hazardous materials incident? It is one of the first.
It is one of the first.
In the sequence of evacuation, when is the safe area selected and arranged?
Before the evacuation order is given
What resource gives information on the necessary initial distances of evacuation for hazardous materials incidents?
The ERG
What is the technique called for protecting people from a hazardous materials incident by keeping them in a safe atmosphere without evacuating them?
Shelter in place
What is the mathematical formula for calculating how many people can be evacuated at a given time?
There is none.
In perfect circumstances, what units of time would be required to measure the evacuation of residents?
Hours
What is key to a safe and successful emergency evacuation?
Local emergency planning
What is the primary concern at a hazardous materials incident?
Search and Rescue
What are actions that stop the hazardous materials from leaking or escaping?
Containment
What is one factor that must be evaluated when considering containment actions at a hazardous materials incident?
What the likely duration of the incident would be without intervention
When there is fire associated with a hazardous materials incident, what should be considered first and foremost?
Identifying the material involved
If foam is applied to a hazardous materials spill, for fire suppression or vapor suppression, what happens to the volume of the spill?
it Increases
Why should foam be applied so that it flows down across a liquid?
So as not to directly upset the burning surface
What is the process in which a material is applied that will soak up and hold a hazardous material as a sponge holds water?
Absorption
Why is absorption a difficult technique for operations-level responders at a hazardous materials incident?
Because it requires being in close proximity to the hazardous material
What is the process of creating an area to hold hazardous materials, such as digging a depression and allowing a liquid to flow into it and be held there?
Retention
What is one concern with using dilution at a hazardous materials spill?
...
How are vapors suppressed?
By applying a blanket of foam
What is one mechanism for dispersing vapors?
Hose streams on fog settings
How are vapors suppressed? By applying a blanket of foam
...
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?
Pesticide
Does evacuation have to involve some risks, even if it is properly planned?
Yes, evacuation involves some significant risks, even if properly planned.
Does transportation to temporary evacuation areas have to be arranged?
Yes, and for all populations, including those with disabilities
In the context of sheltering-in-place during a hazardous materials incident, local emergency planning should address what types of facilities?
Those that would have large populations to evacuate
When people are being sheltered in place, what should be done with the ventilation system?
It should be turned off.
Is a plan of shelter-in-place related at all to the toxicity of the hazardous material involved?
Yes, the more toxic it is, the less likely to shelter-in-place.
What will determine the ability to evacuate an area and staff an adequate emergency shelter?
The local resources available
How does the complexity of search and rescue in a hazardous materials incident compare to a structure fire?
It is more complicated with hazardous materials incidents.
What is one way of protecting exposures at a hazardous materials incident?
Evacuating residents
What is the term for attempting to keep the hazardous materials on the site or within the immediate area of the release?
Confinement
What type of action is patching a breached container?
Containment
What is one factor that should be evaluated when considering undertaking containment operations at a hazardous materials incident?
Maximum quantity of material that can be released
Foam should be gently applied or:
bounced off an adjacent object.
What term collectively describes areas in terrain or places in a structure where materials such as liquids and powders or solids can be contained?
Natural control
How should absorbent be applied to a hazardous materials spill?
From a distance, with shovels
What characteristic do shovels used in absorption operations at a hazardous materials incident need to have?
They need to be non-sparking.
What is the technique of redirecting the flow of a liquid away from an area?
Diversion
What technique describes how the concentration of a vapor cloud is lessened by spreading it out?
Vapor dispersion
Vapor dispersion with fans or fog streams can only be attempted after:
The hazardous material is accurately identified.
What alternate technique for reducing vapor formation works with some hazardous materials?
Reducing their temperature
What 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?
Recovery Phase
What is the BEST way to determine the area of evacuation and how far to extend actual evacuation distances?
Detection equipment
Is a plan of shelter-in-place related to the anticipated duration of the incident?
Yes, the longer the incident, the more time the material has to permeate the structure
Which of the following detection methods/equipment is used to detect radiation?
Geiger
Which of the following detection methods/equipment is used to detect corrosivity on a hazardous materials incident?
PH meter
Which of the following detection methods/equipment is used to detect oxygen levels on a hazardous materials incident? Four-gas monitor
Four-gas monitor
Who determines which offensive or defensive actions will be taken at the scene of a hazardous materials incident?
The IC, ( incident commander)
What level of training is required to plug or patch a container?
Technician
When should fires be extinguished on pressurized gas cylinders?
When firefighters are positive they can control the leak
What is the term for the placement of impervious materials to form a barrier that keeps a hazardous material from entering an area or restricted the material to an area?
Diking
What type of dam should be constructed when a material has a specific gravity greater than 1?
Overflow dam
Which protective action entails the use of water or another liquid to weaken the strength or concentration of a hazardous material?
Dilution
Which protective action involves shutting down systems or operating valves?
Remote shut-off valves
Where are remote shut-off valves normally located on MC-306 cargo tanks?
Front driver's side
Who determines when to terminate an incident?
Incident commander
Does evacuation have to involve some risks, even if it is properly planned?
Yes, evacuation involves some significant risks, even if properly planned.
Why is controlling liquid spills normally difficult?
The liquid takes the shape of its container or surroundings.