Essentials Ch 13 Flashcards Preview

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Flashcards in Essentials Ch 13 Deck (17):

Incident Stabilization means controlling and extinguishing the fire and is accomplished in three stages:

Locate fire
Confine fire
Extinguish fire
Pg 733


Fire behavior indicators that relate to tactical ventilation are:

Air Flow
Pg 737


Smoke observations:

Volume of smoke discharge
Location of smoke discharge
Smoke color, density and pressure
Movement of smoke
Pg 737


Air flow is caused by:

Pressure differentials inside and outside a compartment
Differences in density between the hot smoke and cooler air
Pg 737


Which type of device uses only electricity to power for ventilation (blower vs smoke ejector)?

Smoke ejector requires electricity
Pg 742


The means used for horizontal and vertical ventilation are:

Natural (opening doors/Windows)
Mechanical (fans, blowers, ejectors)
Hydraulic (fog nozzle)
Pg 744


Leeward side is the side:

Protected side from the wind (opposite side from the wind direction)
Pg 74


Leeward or windward side is opened first for natural horizontal ventilation?

Leeward should be opened first to create an exit point
Pg 745


Negative pressure uses:

Ejector to pull smoke from a compartment to exhaust the smoke
Pg 745


When using hydraulic ventilation how much coverage is targeted on the opening / how far back is the nozzle?

85 - 90% of the opening, 2 feet back
Pg 750


Advantages of mechanical ventilation:

Supplements and enhances natural ventilation
Ensures more control of air flow
Speeds the removal of contaminants
Reduces smoke damage
Promotes good public relations
Pg 751


Disadvantages of mechanical ventilation:

Can cause a fire to intensify and spread
Depends upon a power source
Requires special equipment
Requires additional resources and personnel
Pg 751


For vertical ventilation, an inspection hole is cut to help determine:

The location of a ire and the direction of travel of a fire that is located in an attic or cockloft.

Kerf cut (single cut the width of the saw blade)
'A' cut (triangle)
Pg 756


How far ahead of advancing fire is a trench cut made (defensive strategy)?

At least 30 feet ahead of advancing fire (3 - 4 ft wide) only after an offensive opening has been made as to not pull fire to the trench.
Pg 758


The personnel required for search and rescue and fire fighting operations in highrise blgs is often _____ to _____ times as great as required for a fire in a typical low rise bldg.

4 - 6 times as great
Pg 761


A building's smoke control system is designed to confine a fire to as small an area as possible by _________ the building when smoke or fire is detected.

Pg 763


What is the highest incident priority?

Life safety
Pg 733