Define Abandon correct answers An immediate and rapid exit from the hazadous zone or structure. This may require sacrificing or discarding equipment in order to facilitate the immediate and rapid exit.
Define Withdraw correct answers This is a planned or orderly withdrawal/removal of firefighter...
JATC 1B cont. || with 100% Error-free Answers
Define Abandon correct answers An immediate and rapid exit from the hazadous zone or structure. This may require sacrificing or discarding equipment in order to facilitate the immediate and rapid exit.
Define Withdraw correct answers This is a planned or orderly withdrawal/removal of firefighters
from the hazardous zone or structure. Firefighters generally should exit as a company or team with all hose, tools and equipment.
What tactical objectives are expected for an interior fire attack correct answers Direct Attack, Check for extension, primary search of the fire room and hydraulic ventilation
5 limiting factors of a fire stream reach correct answers gravity, water velocity, fire stream pattern, water droplet friction with air, and wind.
define WYE correct answers Wye is a hose appliance with a single female intake and two male outlets. Wyes with gates are called gated wyes. Most common is 2 1/2" to 1 3/4" outlets
define Adapter correct answers an adapter is a fitting use for connecting hose couplings of the same inside diameter but that have different thread types. most common are double male and double females.
define Siamese correct answers an adapter that looks similar to a wye, but has two female inlets and a single male outlet. They are used to provide larger quantities of water at lower friction loss
define gate valve correct answers controls the flow of water by a baffle that is moved by a handle
and screw arrangement. The baffle moves up and down as the valve is rotated. commonly used to
control the water flow from a hydrant
define appliance correct answers an appliance is any piece of hardware used in conjunction with fire hose for the purpose of delivering water
define clapper valve correct answers a clapper valve is used in Siamese appliances and pump piping to allow water to flow in only one direction. The clapper is a flat disc that is hinged at the top or one side and that swings in a door-like manner. They prevent water from flowing into unused ports.
define reducer correct answers a reducer is an adapter used to attach a smaller hose to a larger hose. The larger threads being on the female end and the smaller threads on the male end.
define ball valve correct answers controls the flow of water in pumper discharges and gated wyes. Ball valves are open when the handle is in line with the hose and closed when it is at a right angle to the hose. define balloon frame construction correct answers common method used for constructing wood fram residential building between 1800s to mid 1950s. It consists of long continuous studs that run from the foundation to the roof eave line. This creates wall cavities between the studs that are
open from the ground floor to the attic. Lacking fire blocks a fire in the basement can extent to the attic through this channel.
Type 1 construction correct answers also known as fire-restive construction. Consists of mainly reinforced concrete with structural members that are protected by blown-on insulation or automatic sprinklers.
Type 2 construction correct answers also known as noncombustible construction made of the same materials of type 1 except the structural components lack the insulation or other protection of type 1 construction
Type 3 construction correct answers known as ordinary construction. The exterior walls and structural members are made of noncombustible materials such as concrete blocks or clay blocks.
Type 4 construction correct answers Known as Heavy timber construction, requires that exterior and interior walls and their interior walls and their associated structural members be made on noncombustible or limited combustion materials
Type 5 construction correct answers Know as wood frame construction. the exterior walls, bearing walls, floors, roofs and supports are made completely or partially of wood. commonly used to construct the typical single family residence.
List 9 common building materials correct answers wood, masonry, metals, reinforced concrete, gypsum, lath and plaster, glass/fiberglass, plastic, composite materials
Steel exposed to high temperatures, at or over 1000 degrees will correct answers lengthen, or elongate and can buckle or fail is restrained from movement at the ends
Define Backdraft correct answers an instantaneous explosion of superheated gases that occur when oxygen is introduced into an oxygen-depleted confined space. This combustion that was stalled resumes in an explosive manner when oxygen is reintroduced.
Define Flashover correct answers Flashover is a stage of a fire at which all objects within a compartment have been heated to their ignition temperature and flames breakout almost at once over the surface of all objects in the space. Flashover is the rapid transition between the growth and fully developed fire stages but is not a specific event such as ignition.
Define Smoke Explosion correct answers a form of fire gas ignition; the ignition of accumulated flammable products of combustion and air that are within their flammable range. A smoke explosion may occur before or after the decay stage. Smoke will travel from the fire and it can accumulate and cool in other areas and mix with air. The smoke within its flammable range contact and ignition source and results in an explosively rapid combustion.
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