Terms in this set (109)
When ventilating a shingle-covered pitched roof, where A few inches below the peak on the downwind side
should the cut be made?
Mechanical ventilation involves: using fans, blowers, and smoke ejectors to create negative or positive pressure.
What is a disadvantage of positive pressure ventilation PPV may accelerate hidden fires throughout the building.
(PPV)?
How can pike poles be used to create ventilation Pulling or opening ceilings
openings?
When would a louver cut be used to ventilate a roof? An opening is being made in a flat roof with the truss in the middle
Which statement is true of ventilating fires in windowless They usually require mechanical ventilation to remove smoke.
buildings?
Which statement is true of using PPV to ventilate a It is best to apply positive pressure at the lowest point, ground level.
multistory building?
, In order for a positive-pressure attack (PPA) to be enough pressure must be created to force smoke and heat to exhaust openings.
effective:
Unless identified during pre-fire planning or size-up, fire in the structure is ventilation-limited.
firefighters should assume that a structure consists of
lightweight construction and that the:
Ventilation can be used in overhaul applications to: minimize smoke damage to the structure.
To account for wind conditions at a fire, firefighters work with the wind at their backs.
should:
Once a ventilation cut is made in a metal roof, firefighters peel back the metal.
should:
Natural horizontal ventilation involves: opening doors and windows to allow normal air currents to remove smoke and
heat.
Creating positive pressure for mechanical ventilation raising the pressure inside the structure so that smoke and fuel gases move toward
means artificially: lower-pressure openings more quickly.
When ventilating a shingle-covered pitched roof, where A few inches below the peak on the downwind side
should the cut be made?
Mechanical ventilation involves: using fans, blowers, and smoke ejectors to create negative or positive pressure.
What is a disadvantage of positive pressure ventilation PPV may accelerate hidden fires throughout the building.
(PPV)?
How can pike poles be used to create ventilation Pulling or opening ceilings
openings?
When would a louver cut be used to ventilate a roof? An opening is being made in a flat roof with the truss in the middle
Which statement is true of ventilating fires in windowless They usually require mechanical ventilation to remove smoke.
buildings?
Which statement is true of using PPV to ventilate a It is best to apply positive pressure at the lowest point, ground level.
multistory building?
, In order for a positive-pressure attack (PPA) to be enough pressure must be created to force smoke and heat to exhaust openings.
effective:
Unless identified during pre-fire planning or size-up, fire in the structure is ventilation-limited.
firefighters should assume that a structure consists of
lightweight construction and that the:
Ventilation can be used in overhaul applications to: minimize smoke damage to the structure.
To account for wind conditions at a fire, firefighters work with the wind at their backs.
should:
Once a ventilation cut is made in a metal roof, firefighters peel back the metal.
should:
Natural horizontal ventilation involves: opening doors and windows to allow normal air currents to remove smoke and
heat.
Creating positive pressure for mechanical ventilation raising the pressure inside the structure so that smoke and fuel gases move toward
means artificially: lower-pressure openings more quickly.
