Term
| The planned, methotical, and systematic removal of pressure, heat, smoke, gases, and in some cases even flame from an enclosed area through a predetermined path is? |
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Definition
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Term
| What is the removal of smoke from a building called? |
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Definition
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Term
| What is vertical ventilation? |
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Definition
| Removal of smoke and gases through vertical channels, such as a skylight or hole cut in the roof. |
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Term
| What is horizontal ventilation? |
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Definition
| Channeling of heat and gases through horizontal openings such as windows and doors. |
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Term
| ________ & _______ take the path of least resistance, if ventilation is preformed wrong it can accelerate fire spread. |
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Definition
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Term
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Definition
| When a fire is not vented and all contents of room reach their ignition temp at the same time, causing the entire room to combust instantly. |
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Term
| What are some signs of potential backdraft? |
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Definition
| Smoke-stained windows, Puffing of smoke at seams of windows and doors, No visible flame or dull red flame in the depth of smoke, Heavy black smoke, Tightly sealed building, Extreme heat |
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Term
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Definition
| When products of incomplete combustion (smoke) burn in the air due to extreme amounts of heat. |
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Term
| What are two types of ventilation? |
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Definition
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Term
| What could you use to preform natural ventilation? |
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Definition
| Windows, doors, roof cut. |
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Term
| What is the #1 tool used in mechanical ventilation? |
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Definition
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Term
| Name three ways to promote mechanical ventilation? |
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Definition
| HVAC systems, Smoke fans, & Hydraulic ventilation. |
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Term
| What are the mechanics behind ventilation? |
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Definition
| Movement of air from a high pressure area to a low pressure area. |
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Term
| What is the difference between negative and positive pressure? |
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Definition
| Positive pressure the fan blows into the building, while negative pressure blows air out. |
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Term
| A form of vertical ventilation that can be obtained by opening roof fetures such as penthouse doors, skylights, and ventilation shafts. |
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Definition
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Term
| ________ is the most efficient type of cut. 4x4 foot cut in the roof, but not throught the rafters. But can be expanded if needed. |
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Definition
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Term
| This type of cut is used in purely defencive operations and ventilates a cock loft area. |
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Definition
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Term
| What can one determine by an inspection hole/cut? |
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Definition
| Roof covering and depth of covering, Roof sheathing material, Rafter direction, Conditions directly below firefighters |
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Term
| What are some safety conciderations when venting? |
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Definition
| Will ventilation permit the fire to expand? Will the escape route be cut off? Will ventilation endanger others? Work in teams. Proper supervision |
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