Engine Company Operations Quiz Flashcards
(104 cards)
What are the components of the fire tetrahedron? (Page 10)
Oxygen, Heat, Fuel, Chain Reaction
Which choice best describes Flashover? (Page 11)
All surfaces and objects within a space have been heated to their ignition temperature and simultaneous ignition of all surfaces and objects in the space occurs.
Which choice best describes Backdraft? (Page 11)
Additional oxygen is introduced into a smoldering fire as heated gases enter their flammable range and ignite with explosive force.
Which choice best describes Rollover. (Page 11)
Flames present in layers of smoke as a result of heated gases that are pushed under pressure from the fire area into uninvolved areas.
Which choice best describes Thermal Layering? (Page 11)
Tendency of gases to form into layers according to temperatures.
Which stage of fire development is defined as: heat, oxygen, and a fuel source combine and have a chemical reaction resulting in fire. (Page 12)
Incipient
Which stage of fire development is defined as: the fire increases in size from small flames to full fire that involves the entire room? (Page 12)
Growth
Which stage of fire development is defined as: fire continues to burn until the available fuel and oxygen in the room or area is consumed or extinguished. (Page 12)
Fully Developed
Which stage of fire development is defined as: occurs once all available oxygen is consumed. (Page 13)
Decay
Rollover should serve as a warning that… (Page 12)
The fire may be reaching the point of flashover
The increased HRR (Heat Release Rate) of modern materials results in: (Page 13)
Flashover happening quicker
What is the initial hoseline positioning for hydraulic ventilation? (Page 15)
2’ away from a window with a fog pattern covering 80% of the opening
Which factors determine the effectiveness of hydraulic ventilation? (Page 15)
Distance from opening and pattern used
White/Grey smoke is indicative of: (Page 17)
Moisture or early stage incipient Class A fire Too lean to contribute to fuel load
Grey smoke is indicative of: (Page 17)
Early stage incipient/free burning fire with Class A and B fuel sources Smoke possibly reaching the LEL level
Grey/Black or Brown smoke is indicative of: (Page 17)
Fully developed fire with Class A and B fuel sources that is most likely ventilation-limited Smoke is in the flammable range and subject to burn if heat is available
Black/Brown smoke is indicative of: (Page 17)
Fully developed or decaying stage fire that is extremely ventilation-limited Smoke is typically too rich to burn
.The first “E” in RECEO VS stands for? (Page 21)
Exposure
_____ is the general plan or course of action decided upon to reach the objectives.
(Page 21)
Strategy
______ are specific actions employed to fulfill a strategy. (Page 21)
Guidelines
_____ is the primary focus of any incident. (Page 21)
Rescue of life
The primary goal of the exposure line is? (Page 21)
Minimize fire spread and stay ahead of the fire
Within in the structure, overhaul should start? (Page 21)
In void spaces and closest to the fire, working towards unburned side
The introduction of ANY additional ventilation into a structure will increase fire intensity and fire spread. (Page 22)
True