7 Backup Lines Flashcards
How are back up lines not to be used
Back up lines are not used for exposure coverage or to attack the fire that other positions.
When should a backup line be stretched
Whenever it is obvious that the fire will not be quickly extinguished with initial attack lines
True or false back up lines should be taken into the fire building immediately after the initial attack lines.
True
What type of line should be used as a backup line compared to the initial attack line
Back of lines should have greater reach and deliver more water
When 2 inch and three-quarter hose lines are used for initial attack what should the back up line be
2 1/2 inch hose line, It will flow almost the same as the 2 inch and three-quarter Lines and allow deeper penetration especially if used with a solid stream
What size line should be used to back up a 2 1/2 inch initial attack line
Another 2 1/2 inch hose
If 2 inch and three-quarter winds are not effective adding three or four more would be ineffective just as much, what is needed that this doesn’t have
Reach, penetration, and cooling effect of larger hose lines
If two or more inch and three-quarter attack lines are operating within one or two floors of each other which kind of hose would be sufficient to back them up
2 1/2 inch hose on the fire floor
If a 2 1/2 inch hose is used for initial attack how should the back up line be configured
2 1/2 inch hose with larger smoothbore tips unless these are already in use
When the fire is so serious that the heaviest hose lines maybe used for the initial attack what must be available for backup
Master stream appliances
The master stream appliance should be immediately placed into service and charged for back up so it can
The quickly placed in service to cover the escape of firefighters from dangerous positions
When an interior attack using 2 1/2 inch hose lines fail to control the fire what should happen
Back out all firefighters change to defensive attack using master stream appliances
If back up lines need to be used what should be done with the initial attack lines
They should be shut down they have proven ineffective against the fire and can do a little in support the heavier streams
After back up lines have gained control of the fire and an advance can be made what can be done with the smaller of initial lines
They can be used to perform extinguishment and overhaul
If 2 1/2 inch hose has been used for both initial attack in the back of wine what can be used for overhaul operations
An inch and three-quarter hose attached to the 2 1/2 inch nozzles or with wyes
