___________ Cut used to create fire break to stop fire spread in common attic or large structures. Strictly defensive.
Small structure, ventilation may only require ____ firefighters
___________ ventiliation Opening doors, windows to allow natural air currents and pressure differences to move smoke, heat out
Controlling and extinguishing fire – accomplished in stages
Locate, ______ and
Extinguish
Tactical ventilation must be capable of exhausting volume of heat, smoke, _____ gases produced by fire
Most important Weather Condition influence
When ventilating a multistory building it is best to apply positive pressure ventilation at the_______ point of the structure
Do ___ direct a fire stream into a ventilation opening during offensive interior operations.
Any technique by which heat, smoke, and other parts of combustion are channeled out of a structure by way of existing or created openings such as windows, doors, or other openings in walls
The __________________ will make the decision to ventilate the structure.(2wds)
Use of plastics, other synthetic materials _________ increases fuel load in all types of occupancies
______ventilation
Uses spray nozzle set on fog pattern to draw smoke out opening Requires firefighters to operate nozzle within contaminated atmosphere
Vertical Ventilation presents increased risks by placing personnel ______ ground level
_________ventilation involves pulling smoke, fire gases out through an opening or pushing fresh air into structure and displacing smoke, fire gases
Which fire behavior indicator can provide an indication of interior fire conditions by observing his volume, location, color, density, and movement
Most common type of opening made in flat
roof – ________or rectangular
When using hydraulic ventilation ____ nozzle set on wide pattern to cover 85 to 90 percent of opening where smoke will be drawn
Properly _______ tactical ventilation allows firefighters to see better, locate victims more easily, and find the seat of the fire sooner.
When transporting a rotary saw or a chain saw to or from a point of operation it is safest to turn it ___
Roof ladders are only meant to prevent slipping and are not ______ to be used on fire-weakened roofs.
Tactical ventilation of a burning building allows heat, smoke, and fire gases to escape to the __________ and also draws fresh air into the building.
A disadvantage of PPV is that hidden fires may __________, spread throughout building