Engine Company Ops Flashcards
(32 cards)
The ________ stage begins when heat, oxygen, and a fuel source combine and have a chemical reaction resulting in fire, also known as ignition.
Incipient
Firefighters should view rollover as a warning that the fire area may be reaching the point of ________, which occurs between a fire’s growth and fully developed stages.
Flashover
Smoke leaving a structure has four inherent characteristics:
volume
velocity
density
color
_________ ________represents the most reliable indicator of a fire’s location
smoke velocity
The NFPA suggested that the upper range of temperature tenability for human is approximately
212 degrees
carbon monoxide density of approximately 200,000 parts per million renders the human body unconscious within
4-12 seconds
True or False
Withdrawals do not always require relocation from an interior to an exterior position.
True
Withdrawal of interior units from a second-floor position to a first-floor position.
Upon ordering a withdrawal, Command should perform a
PAR check
The evacuation order may be given in four different ways.
Verbally
Signaled over the radio with evacuation tones
Apparatus air horms
Stretching and advancing a 2 1/2” hoseline often requires
two companies and up to six firefighters
Personnel should estimate the need for ___ft of hoseline to reach every floor above or below the level of entry.
25 ft
Standpipe operations
Where should the laying of the hose be more advantages in standpipe operations, the fire floor or the floor below/
The floor below because it’s likely free of smoke and gives better working conditions
Where is the preferred method is to chock doors _____ so personnel can quickly remove chocks while retreating under advancing fire conditions
Low
If the nozzle firefighter opens the hoseline within __ ___, the temperature will not return to the levels present prior to suppression efforts.
10 to 15 seconds
Hydraulic ventilation should be done by
moved in an “O” pattern as far from the opening as possible,
With no fire evident in the compartment, heat increasing to 800 °F or more at the ceiling level, and thick smoke banking down near the floor, interior crews must recognize the compartment is entering is pre _______
Flashover
Request to transfer Command: The first due engine company officer considers this when the incident requires
immediate interior operations
Prior to entry to a IDLH, the officer must ensure their company is
wearing all appropriate PPE and the hoseline is charged with adequate pressure and flow.
Firefighters should view rollover as a warning that the fire area may be reaching the point of _________
Flashover
Smoke leaving a structure has four inherent characteristics
volume, velocity, density, and color.
Rescue
One of the the fastest and safest action involves simply extinguishing the fire or positioning a ______ between the victim and the fire.
Hose line
The primary goal of the exposure line is to minimize
fire spread and stay ahead of the fire
Defensive Mode
The objective of the defensive mode
stop the fire from spreading to savable exposures
What indicates the most reliable indicator of a fire’s location
Smoke velocity
