Chapter 11 Flashcards
Guidelines state that first responders at the Operations level are those who respond in a defensive fashion without
actually trying to stop the release
Defensive actions that first responders can undertake include
Preventing a release, Containing the release, Protective actions
First responders should keep in mind that types of stress include (3)
Thermal
Mechanical
Chemical
What type of containers usually present the greatest danger?
Pressurized
Some pressure relief devices may not operate properly if the container is not in what position?
Upright
An important point that first responders should remember about pressure relief devices is that they can only protect a container as long as they are the?
Weak link in the container wall
Damage in Pressurized containers is especially troublesome when it occurs?
At the weld lines
The weakening of a container wall from flame impingement usually occurs where?
The flame contacts the vapor space
Whenever containers are exposed to fire with both a decrease in container strength and an increase of internal pressure, remember that the operation of a PRV is no guarantee that…
The container won’t explode.
What sound should serve as a warning for first responders need to immediately evacuate the area.
PRD increasing in volume and pitch
In non-pressurized containers what area is the weakest and therefore the most dangerous?
The ends
During vehicle accidents involving hazmat, FR should attempt to learn not only what materials are present but also
Types of containers involved
During leaking bulk storage containers, first responders should always monitor the
integrity of dikes
Most absorbent booms are manufactured in __ft sections?
10 ft.
Ends of absorbent booms must be secured to the shoreline, this can be accomplished with
wood or metal stakes
When making an underflow dam, the hose is placed in the water with only about __ft of hose in front of where the dam will be?
2
An important consideration for first responders to remember when attempting to contain the release of a spilled liquid is?
Redundancy
The most difficult form of material to control is
gas or vapor
ERG provides recommended distances for immediate isolation of spill or leak areas under the heading?
Public Safety
Table of Initial Isolation and Protective Action distances is intended to show areas likely affected during the first?
30 mins
Use of barrier tape should be?
Monitored by FR’s
When attempting to document notification of citizens, a suggestion is to mark the front door or mailbox with a
small piece of triage tape
The best way to decontaminate any protective clothing is to?
Avoid contamination
Decon should be done with at least what before leaving the scene
Gross wash
Removal of protective clothing should be done in a manner that?
Turns the garment inside out
Any garments in need of additional cleaning off site should be placed in?
Large clear trash bags
If garment is taken to a vendor for cleaning, they should get a copy of the
MSDS/
Attempts to contain a liquid that has spilled into a body of water must take into account the materials
Specific gravity and Miscibility
First responders should contact who for assistance when conducting operations that involve evacuation or in-place protection?
Emergency management
