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tcfp texas commission on fire protection firefighter exam 2 questions and answers 2024
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tcfp texas commission on fire protection firefighter exam 2 questions and answers 2024
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(TCFP) Texas Commission on Fire Protection FireFighter Exam 2 Questions and Answers 2024 Black color coded sprinklers have what color bulb? Orange/Red White color coded sprinklers have what color bulb? Yellow/Green Blue color coded sprinklers have what color bulb? Blue Red color coded sprinklers have what color bulb? Purple Green color coded sprinklers have what color bulb? Black Orange color coded sprinklers have what color bulb? Black Black color coded sprinkler systems have a temperature rating of - 135 - 170 White color coded sprinkler systems have a temperature rating of - 175 - 225 Blue color coded sprinkler systems have a temperature rating of - 250 - 300 Red color coded sprinkler systems have a temperature rating of - 325 - 375 Green color coded sprinkler systems have a temperature rating of - 400 - 475 Orange color coded sprinkler syst ems have a temperature rating of - 500 - 575 Orange colored sprinkler systems can have a temperature rating up to - 650 Blue hydrants have a gpm of - 1500+ Green hydrants have a gpm of - 1000 - 1500 Orange hydrants have a gpm of - 500 - 999 Red hydrants have a gpm of - 0 - 500 _________ is the most common building material used in North America and is the main component of many structural assemblies Wood Lumber of smaller dimensions needs to be protected by ______ drywall or insulation to increase it's resistance to fire Gypsum Wood with high moisture content is sometimes referred to as ______ Green wood Masonry includes bricks, stones and _________ Concrete blocks Brick and stone are generally used to create ______ ______, which are decorative covers for wood, metal, and concrete -block load bearing walls Veneer walls Stones and concrete may lose small portions of their surface when heated, a condition called _______ Spalling Metal building materials commonly used include ___ _____, steel, aluminum and copp er (TCFP) Texas Commission on Fire Protection FireFighter Exam 2 Questions and Answers 2024 Cast Iron Metals are used to provide: (3 total) - structural support - decorative coverings - fasteners What are the two types of iron found in buildings in North America? - cast iron - wrought iron Cast iron stands up well to fire and intense heat, but it may ______ or ______ when rapidly cooled with water Crack or shatter ______ is the primary material used for structural support in the construction of large buildings Steel Steel structural members ________ (_________) when heated which tends to push the walls oit Lengthen (elongate) From a firefighters perspective, awareness of the type of _______ used in a particular structure is vitsl Steel members Firefighters also need to determine how long steel exposures have been ____ ____ _____ Exposed to heat Steel begins losing its strength at around _______ degress 570 Elongating steel can push out loadbearing walls and cause a collapse. But what will happen if the walls can withstand the elongation? The steel will fail and sag somewhere in the middle, causi ng collapse of uppers floors or the roof Reinforced concrete is internally fortified with ___________ ______ (_____) or _______ ______ Reinforcement bars (rebar) or wire mesh What is compressive strength? The ability to withstand pressure on the surface What is tensile strength? The ability to withstand being pulled apart or stretched Why is gypsum unique? It has a high water content that absorbs a great deal of heat as the moisture evaporates Interior laugh and plaster walls can be ____ ________ to penetra te with axes or hand tools Very dificult ________ is typically used for insulation Fiberglass Most plastic will ______ and contribute to the fuel load Melt Why are composite or engineered materials frequently used to substitute for wood or steel framing found in older buildings? Because they are cost effective and fairly easy to manufacture The structural failure of a building or any portion of it, resulting from a fire, snow, wind, water, or damage from other forces, is referred to as __________ Structural collapse Church steeples, water tanks, chimneys, and false facades that extend above the structure must be viewed as a potential ________ __________even if the structure is not Collapse hazard Type I construction high -rise buildings are not like ly to collapse, making the primary concern the hazard of _______ _______ ______ ______ or curtain walls Flying glass from windows (TCFP) Texas Commission on Fire Protection FireFighter Exam 2 Questions and Answers 2024 If Type I structural collapse does occur, it will be _________ and not structure wide Localized When exposed the temperatures above ________, and protect still will expand and twist, pushing out walls, and when cool, will slightly constrict 1000 degrees Masonry construction can collapse in ___ _____ or _____ One piece or crumble When masonry construction collapses, the debris can travel some distance and cause what? The collapse of other structures or objects Walls in type V construction may collapse ________ or _________ Inward or outward You should plan for a collapse zone at any fire incident with what type of building construc tion? Type V What is a curtain collapse? Materials fall straight down Lightweight trusses and engineered floor systems can fail in _________ Minutes Collapse of structures using _________ construction can occur early in the incident without warning Lightwe ight What type of buildings can pose an even greater danger of fire in collapse? Abandoned buildings What features will affect the length of time the structure will maintain integrity under heat exposure? (5 total) - building size - compartmentation - construction type - fuel load - Materials The______ __ ___ ____ can easily indicate the quantity of heat that the structure has been exposed to and the potential for structural collapse Stage of the fire Why is collapse more likely in the decay stage and d uring post -suppression activities? Due to the weakened state of structural members and the build up of water How can the contents within the structure contribute to collapse? (3 total) - generating higher temperatures - adding dead weight - increasing weig ht from water retention What are two ways you can gain knowledge of the contents within a structure? - preincident plans - inspections A ________ _________ must be established adjacent to any exposed exterior walls of the structure Collapse zone Traditionally, collapse zones have been estimated by multiplying the height of the structure by a factor of ______ 1-1/2 Collapse zones should be established when: (3 total) - indications that prolonged fire or heat has weakened the structure - A defensiv e strategy has been adopted (TCFP) Texas Commission on Fire Protection FireFighter Exam 2 Questions and Answers 2024 - Interior operations cannot be justified The size of a collapse zone must take into consideration the following: (3 total) - type of building construction - other exposures - safest location for apparatus and personnel What 3 immediate action steps must be taken if firefighters suspect a collapse? - begin exiting the building, and inform command and all others inside - establish and clear the collapse zone - roll call When a collapse is suspected, what is the only exception to personnel working in the collapse zone? To cautiously place unstaffed master stream devices and then immediately withdraw What are the two primary types of dangerous conditions that may be posed by a particular building? - conditions that contribute to the spread and intensity of the fire - conditions that make the building susceptible to collapse What is one danger HVAC systems pose during a structure fire? Ducts can move heated air and products of combustion from involved compartments to other compartmen ts within the structure Every U.S. gallon of water used to suppress fire adds ___ to ___ pounds of weight to floors that may already be weakened 8 to 10 As an estimate, 250 gpm adds _______of water per minute to the structure 1 ton Firefighters should ensure the structure is _____ and ______ to leave to the property owner Secured and safe Why should firefighters exercise caution during overhaul operations? To prevent cutting load -bearing components in areas where the gypsum has failed what could happen the structural members behind it could/will be subjected to higher temps and could fail floor assemblies create what an individual platform that rests on the foundation Indicators of Structural Instability and collapse Cracks appearing in exterior walls wi th smoke or water appearing through the cracks. Deteriorated mortar between the masonry what could happen if masonry is exposed to too much heat concrete blocks may crack but they usually retain most of their strength and basic structural stability heat may also degrade the mortar between the bricks, blocks, and stone the mortar may also display signs of weaking Collapse Zone Area beneath a wall in which the wall is likely to land if it loses structural integrity. Curtain wall Nonload -bearing exterior wal l attached to the outside of a building with a rigid steel frame. Usually the front exterior wall of a building intended to provide a certain appearance. Drywall System of interior wall finish using sheets of gypsum board and taped joints. fiberglass Compo site structural material of plastic and fiberglass that is used in casting for children and elderly for light weight properties Green woodThe benefits of buying summaries with Stuvia:
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