OG 4.4 Fireground Safety Flashcards
Barriers marked with red and white scene tape can be crossed by whom?
should not be crossed by anyone.
What is yellow tape used for?
Crowd control
Marking the warm zone
What is red tape used for?
Marking the hot zone that a hazardous material incident.
It is preferred that the person taping off the hazard area being be involved in removing the tape. If this is not possible, who should be consulted?
Command Will be consulted before removal of tape
Why is it a good idea to raise an extension ladder more than three rungs above the roofline?
It may ensure the tip of the ladder is visible above the smoke.
When operating in a defensive mode where should you be positioned?
As far away from the involved area as possible while remaining effective.
What are the two major reasons for organizing an incident scene into divisions and groups?
Safety
Accountability
Division/group supervisors must maintain communication capabilities with the resources under their command to control what two things?
Position
Function
Company officers should frequently assess the physical condition of their crew members. Be alert for signs of what two things?
Physical fatigue
Mental fatigue
When doing a search and rescue what is the minimum member of people in the team?
Two people
What has been one of the leading causes of injury and death to firefighters on the fire ground?
Structural collapse
In a fire, What two types of roofs are vulnerable for collapse?
Peaked
Domed
What are the five types of primary building construction classifications?
- Wood framed
- Ordinary construction
- Heavy timber
- Fire resistive
- Noncombustible
When is the collapse potential for a woodframe building?
5 to 7 minutes or less
What is the collapse potential for ordinary construction?
20 minutes
What is the collapse potential for heavy timber?
One hour
What is the collapse potential for fire resistive buildings? Protected structural members.
Columns-four hours
Beams-three hours
Floors-two hours
What is the collapse potential for noncombustible type II buildings? Unprotected structural members.
Early failure
There are six early warning signs of collapse to be alert for, What are they?
- Cracks in exterior walls
- Bulges in exterior walls
- Sounds of structural movement
- Smoke or water leaking through walls
- Flexing movement on any floor or roof
- Twisting or flexing of interior walls or columns
There are six different construction features that have been known to fail prematurely or contribute to early structural failure when affected by fire, What are they?
- Large unsupported areas
- Large signs or Marquees
- Cantilevered canopies
- Ornamental walls
- Bowstring truss roofs
- Unprotected metal beams or columns
What does the term “Abandon” mean?
Exit immediately taking only tools, equipment and hoselines necessary to permit emergency egress.
What will normally follow the abandon command?
One 10 second blast of air horns by all apparatus close to the hazard zone.
What does the command “withdraw” mean?
Back out with tools and equipment in a rapid and orderly fashion.
What does the term “evacuate” mean?
Remove civilians from an involved area.
