Crafton Hills College Fire Academy Midterm

Crafton Hills College Fire Academy Midterm How often should an SCBA mask be fit tested? - ✔✔Every 12 months What type of fire is dry chemical used for? - ✔✔Class K Where are adult fire victims most often found? - ✔✔In ...

Crafton Hills College Fire Academy Midterm How often should an SCBA mask be fit tested? - ✔✔Every 12 months What type of fire is dry chemical used for? - ✔✔Class K Where are adult fire victims most often found? - ✔✔In doorways What is the left side of the building referred to as? - ✔✔B or "bravo" How many firefighters are killed annually? - ✔✔100 What is a direct fire attack? - ✔✔Spraying the base of the fire How long should a hose be tested for? - ✔✔5 minutes What is a bar joist? - ✔✔An open-web steel truss What is an oxygen deficient atmosphere? - ✔✔An atmosphere with less than 19.5% oxygen What does the "A" in PSAP stand for? - ✔✔Answering How many firefighters are needed for a long backboard? - ✔✔4 What is another name for a ground ladder? - ✔✔A portable ladder What is a wet hydrant? - ✔✔A hydrant that has water in the barrel What is a dry hydrant? - ✔✔A hydrant where there is no water in the barrel. This prevents freezing. What product is used on wood to make it fire proof? - ✔✔Mineral salts What is batch mixing? - ✔✔Adding foam to the correct ratio on an engine tank What type of device is a carabiner? - ✔✔A connecting device Where are children fire victims most often found? - ✔✔In a closet Where is an attack line staged on a high rise? - ✔✔1 floor below the fire How much does a charged 50 ft 2 1/2 in. hose weigh? - ✔✔200 lbs What is a short handled hammer called? - ✔✔A mallet When was the ICS created? - ✔✔In the 1970s Defensive firefighting operations are conducted from which location? - ✔✔Exterior Which fire attack results in the least amount of property damage? - ✔✔Offensive Close-range application of water to the fire is the objective of which type of operation? - ✔✔Offensive In general, the most effective means of fire suppression is a(n) __________ attack. - ✔✔Direct Which type of stream is most likely to disrupt thermal balance? - ✔✔Fog What is a master stream that is mounted to an engine called? - ✔✔A deck gun Which statement about hydraulic ventilation is correct? - ✔✔A fog stream is required A vehicle fueled by CNG or LPG is fully involved in fire. Which of the following should be used to fight the fire? - ✔✔An unmanned master stream How should fire fighters approach a vehicle fire? - ✔✔45-degree angle from the side If it is necessary to approach a horizontal flammable-gas cylinder, you should approach? - ✔✔Perpendicular to the side An elevated master stream device mounted at the tip of an aerial ladder is a? - ✔✔Ladder pipe What is the best item to aid extinguishment of smoldering fires in tightly packed combustible materials? - ✔✔Class A foam What is the most severe hazard associated with propane tanks? - ✔✔A bleve When is an indirect attack indicated? - ✔✔When flashover is likely Where should streams be directed to prevent a bleve? - ✔✔The area where the tank is being heated Which type of extinguishing agent should be used on electrical equipment fires? - ✔✔Class C Large handlines flow approximately? - ✔✔250 gpm Commonly used master stream devices flow? - ✔✔350 to 1500 gpm (1325 to 5675 lpm) Which of the following is an example of a two-dimensional fire? - ✔✔Flammable liquid burning on the ground What happens during a blitz attack? - ✔✔a master stream is used for an offensive operation When shutting down electrical service to a structure, you should - ✔✔apply a lockout device What is one of the four key characteristics affecting the behavior of building materials under fire conditions? - ✔✔Combustibility What does a CMU contain? - ✔✔Steel reinforcing rods In which condition does moisture trapped in concrete become heated, turn into steam, and expand, causing parts of the concrete to break away? - ✔✔Spalling What is another term for gypsum board? - ✔✔Sheetrock Which statement about masonry materials is correct? - ✔✔Masonry materials are fire resistive Which material is prone to spalling under fire conditions? - ✔✔concrete Which metal is used in building construction primarily as a coating to protect metal parts from rust and corrosion? - ✔✔zinc What is plasterboard commonly used for? - ✔✔Interior walls and ceilings Which is the primary fire hazard of ordinary construction? - ✔✔Fire extension through concealed spaces Which construction assembly is the most susceptible to total failure resulting from the failure of a single component? - ✔✔truss Which term means the weight of a building without contents? - ✔✔Dead load Which of the following is one of the three basic roof designs? - ✔✔curved What is slash? - ✔✔Debris from logging or clearing operations Aerial fuels are at least _____ above the ground. - ✔✔6 ft (2m) What is the ratio of water in air compared to the maximum amount of water vapor the air can hold at a given temperature? - ✔✔relative humidity Which condition will generally result in lower relative humidity? - ✔✔increasing temperature A safety zone should be large enough __________. - ✔✔the fire shelters are not needed to prevent injury What is the term for the partly decomposed organic material on a forest floor? - ✔✔ground duff Which fuel classification includes large brush? - ✔✔heavy The distance between fire fighters in a safety zone and the flames should be a minimum of _____ times the flame height. - ✔✔4 Which fuel is the most susceptible to changes in relative humidity? - ✔✔grass What is one of the two primary methods of direct attack on a wildland fire? - ✔✔pincer What is the most common type of wildland fire? - ✔✔ground cover Typical backpack pumps contain __________. - ✔✔4-8 gal (15 to 30L) The smothering method of extinguishment is most frequently used in which wildland operation? - ✔✔overhaul Which NFPA standard covers protective clothing and equipment for wildland firefighting? - ✔✔1977 Which NFPA standard covers wildland fire fighter professional qualifications? - ✔✔1051 The maximum diameter of a 1hour fuel is _____. - ✔✔1/4"