Ch. 19 Safety precautions prior to collapse Flashcards
When a danger is reported to the IC prior to a collapse, the IC MUST take some kind of action; The IC may order increased supervision, withdraw FF’s, or order an emergency evacuation. Can he simply acknowledge the report and take no action?
The IC can simply acknowledge the report received about a danger and take no action, when receiving what is considered a KNOWN minor danger.
The IC may order who to investigate a reported danger?
A Chief or EXPERIENCED company officer.
The assignment of a chief officer to supervise a danger area is often done when the continuation of a rescue or firefighting effort is critically important to the overall operation. These assignments that they may be directed are; CELLAR fires, operating on the floor above a fire, roof venting, top floor fires, and advancing a hose line at what type of fire?
Advancing a hose line at a rapidly advancing fire.
When a RIT (FAST) team is put on alert of a danger they should not enter the bldg. or wander from the command post. However, they may do 4 things while standing fast in front of the bldg. What are they, according to DUNN?
Raise portable ladders in the front of the bldg., reposition the aerial ladder for rescue, set up lights in front of the bldg., and remove hose line kinks in front of the bldg.
DUNN never mentions doing anything that will take you away from the front of the bldg.
A party wall where the roof beams from both sections are supported by the wall is not a true fire division. Collapse of the roof on one side could cause what to happen on the other side?
Could cause the Party wall to collapse on the other side.
A fire wall separating 2 sections of a bldg. is designed to allow collapse of the roof and the floors of one section without affecting the integrity nor stability of the fire wall and the other sections of the bldg. A true fire wall has a foundation__________ of the 2 sections of the bldg.
Fill in the blank
INDEPENDENT
A fire wall where the roof and floor beams run in which direction to the wall can be considered a fire division?
Parallel to the wall
Can FF’s operate in the exposures of a attached 2 family house with a plasterboard or masonry wall when the fire bldg. is in danger of collapse during a fire?
Attached 2 family houses with a plasterboard or masonry fire wall between the houses must be considered ONE structure. When 1 half of the attached structure is in danger of collapse during a fire the entire structure is in danger. Occupants and FF’s MUST be withdrawn from both sections.
The prolonged burning of a serious fire on one or more floors of a structure is a collapse danger, where withdrawing FF's must be considered. The IC must consider complete withdrawal in the following situations; Age of the structure Large combustible content Large structural fuel load Undivided open floor spaces Lightweight steel and wood trusses Long span roof and floor systems and What type of cast iron columns?
UNPROTECTED cast iron columns
