TB 90, fire burns Flashcards
what construction features present the greatest danger to firegighters from collapse?
truss, unreinforced masonry, cantilever and unprotected steel construction
the most deadly of the fire phenomena which can occur in a superheated, smoke filled environment which can trap and kill FF is?
flashover
most dangerous and threatening products of combustion is?
heat
warning signs of an impending flashover include all of the following
smoke that increasing in heat and density
roll over is occurring
fire exposing contents and surrounding areas to radiant or convective heat
when operating inside a structure, one of the warning signs of a smoke explosion is?
smoke being drawn into the fire area
how many stages in the development of an interior fire?
3
which of the following signs should warn a fire captain that the danger of backdraft is present?
condensation forming on the windows
the primary heat transfer method within structures and responsible for the majority of fire and smoke spread within structures best describes?
convection
the fire phenomena that is defined as rapid flame spread over one or more surfaces during a fire describes?
flameover
controlling what will maintain thermal balance and prevent excessive stream production?
the form and flow of water
what is the minimum of ladders to every structure and and one additional lader for every? member team on the roof.
2;2
thermal capacity of a substance desribes?
specific heat
what best describes the differences between flashover and backdraft?
the amount of oxygen present
what accurately depicts factors that contribute to the rate of combustion, fire intensity, and the total combustion product output?
arrangement and amount of exposed combustible surfaces
type of fuel source
amount of available air flow or ventilation
the transfer of heat through matter without any visible motion of that matter best describes?
conduction
