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12 Cards in this Set
- Front
- Back
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What is the difference between Tactical Ventilation and Self (Uncontrolled) Ventilation? |
TV - Planned, coordinated and Systematic SV - failure of windows/doors or other elements of structure resulting from actions of fire. |
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What is Consequential Ventilation? |
Ventilation as a result of Firefighting Operations. |
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What is the difference between Defensive and Offensive Ventilation? |
DV - carried out away from the fire after the fire. OV - close to fire compartment to have direct affect on fire. |
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What is Natural Ventilation? |
Not assisted by mechanical means - vents, windows, doors |
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What is Sequential Ventilation? |
One room or floor is ventilated after another so an area can be cleared of products of combustion. |
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What is negative versus positive ventilation? |
NV - fan or jet facing out of an opening uses Venturi principle to REDUCE the pressure in the room. PV - forces air in using fans INCREASING pressure in the room to push smoke out. |
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Can covering jets be directed into inlets/outlets? |
Not unless specifically instructed. Should be used to cool and control escaping products of combustion. |
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When can fixed instillation be used to clear products of combustion? |
On orders of IC (should still seek advice) Advice from trained personnel Advice from SFSO |
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What affects the ICs ventilation plan? |
Wind - direction and strength Inlets - upwind (Door). Outlets - downwind (window) Larger outlets can be considered when the wind is strong and blowing in the right direction. |
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What should the ventilation pathway include? |
Outlet (create 1st). Inlet (create 2nd). Enclosed route - inlet to fire Enclosed route - fire to outlet Covering jets (45mm 230 lpm) charged. Building plans Safety Officers |
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What Tactical Mode should the Incident be in while crews ventilate? |
OSCAR |
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When can Firefighting and rescue teams be committed to the Ventilation Pathway? |
Once VP is secure, stable and working correctly? |
