FIREFIGHTER 2 FINAL ACTUAL 2024 EXAM 150 QUESTIONS AND STUDY GUIDE EXAM WITH DETAILED VE, Exams of Nursing

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FIREFIGHTER 2 FINAL ACTUAL 2024 EXAM 150

QUESTIONS AND STUDY GUIDE EXAM WITH

DETAILED VERIFIED ANSWERS (100%

CORRECT) /A+ GRADE ASSURED

Why was the National Commission on Fire Prevention and Control established? A.To determine how fire loss occurs B.To determine how to reduce fire loss C.To recommend design of fire safety vehicles D.To regulate training of emergency responders - CORRECT ANSWER-B. To determine how to reduce fire loss What type of company protects structures in the wildland/urban interface? A.Truck company B.Brush company C.Engine company D.Special rescue company - CORRECT ANSWER-B. Brush company What type of company is responsible for forcible entry? A.Truck company B.Brush company C.Engine company D.Special rescue company – FGT6 89 What part of the fire service is composed of a variety of companies located in a response area? A.Company B.Battalion C.Engine company D.Operations division - CORRECT ANSWER-B. Battalion

What type of company performs fire suppression duties at structure, vehicle, wildland, and other types of fires? A.Truck company B.Brush company C.Engine company D.Special rescue company - CORRECT ANSWER-C. Engine company A(an) ___ is a written step-by-step plan of action. A.policy B.standard C.procedure D.ordinance - CORRECT ANSWER-C. Procedure A(an) ___ is a set of principles or procedures developed by consensus. A.policy B.standard C.procedure D.ordinance - CORRECT ANSWER-B. Standard A(an) ___ is a collection of rules enacted by law in a particular jurisdiction. A.code B.policy C.standard D.procedure - CORRECT ANSWER-A. Code Which of the following is one way firefighters can reduce exposure to carcinogens present in fires? A.Clean helmet liners B.Follow good nutritional guidelines

C.Maintain positive mental attitudes D.Maintain high levels of physical fitness - CORRECT ANSWER-A.Clean helmet liners Which of the following NFPA¨ standards establishes the design criteria for protective clothing and equipment? A. B. C. D.1977 - CORRECT ANSWER-D. 1977 Which NFPA¨ standard specifies the minimum requirements for department safety and health programs? A. B. C. D.1977 - CORRECT ANSWER-B. 1500 Which of the following is a minimum requirement for protective clothing and equipment as established by NFPA¨ 1500? A.New recruits may not need to train with PPE. B.Most personnel should be fully equipped with PPE. C.Protective equipment must meet current NFPA¨ design standard. D.Protective equipment must meet one of the two most current NFPA¨ design standards. - CORRECT ANSWER-C. Protective equipment must meet current NFPA design standard According to NFPA¨ 1500 emergency operations are limited to: A.those that are required to save the most lives. B.those that can be safely conducted by personnel on scene. C.those that can be started as soon as any personnel reach the scene.

D.those that can be started as soon as the lives of all on scene are safe. - CORRECT ANSWER-B. Those that can be safely conducted by personnel on scene NFPA¨ 1500 requires that departments develop ___, including an annual medical verification of duty fitness. A.physical performance standards for all personnel B.physical performance standards for new personnel C.physical performance standards for personnel participating in administrative positions D.physical performance standards for personnel participating in emergency operations - CORRECT ANSWER-D. Physical performance standards for personnel participating in emergency operations Any power tool not marked double insulated should: A.have a two-prong plug. B.have a three-prong plug. C.not ever be used outside. D.not ever be used with an extension cord. - CORRECT ANSWER-B. Have a three prong plug Which of the following is a telecommunications system? A.Public Safety Answering Point (PSAP) B.Personal Alert Safety System (PASS) C.Federal Communications Commission (FCC) D.National Fire Incident Reporting System (NFIRS) - CORRECT ANSWER-A. Public safety answering point (PSAP) Which of the following is a type of communications center equipment? A.Pagers B.Televisions C.Two-way radio systems D.Public broadcast radios - CORRECT ANSWER-C. Two-way radio system

Telecommunications Device for the deaf/Teletype - CORRECT ANSWER-A. TDD/TTY Which of the following standards has the minimum requirements for receiving, processing, and dispatching emergency responders? A.NFPA¨ 72 B.NFPA¨ 297 C.NFPA¨ 1221 D.NFPA¨ 2002 - CORRECT ANSWER-C. NFPA 1221 Which of the following is a type of public alerting system? A.Direct-line telephone B.Dispatch transmission C.Two-way radio system D.Wired telegraph circuit box - CORRECT ANSWER-D. Wired telegraph circuit box Which of the following would be considered a nonemergency call? A.Report of a wildland fire B.An appointment reminder C.Report of a car accident by survivor D.Medical emergency reported by a witness - CORRECT ANSWER-B. An appointment reminder Which of the following methods may be used to confirm a dispatch transmission? A.Telephone call to dispatch B.Keying the radio microphone C.Request for additional resources D.Pressing orange or red emergency button - CORRECT ANSWER-B. Keying the radio microphone What communication category is defined as messages transmitted within the fire department? A.Telecommunications

B.Internal communications C.External communications D.On-scene communications - CORRECT ANSWER-B. Internal communications Which of the following types of general knowledge is required for internal communications? A.How a radio system works B.How a computer system works C.How a telephone system works D.How an electrical system works - CORRECT ANSWER-A. How a radio system works Which of the following would be a reason to request a personnel accountability report (PAR)? A.The primary search is started. B.A secondary search is completed. C.An emergency evacuation is ordered. D.The public information officer requests it. - CORRECT ANSWER-C. An emergency evacuation is ordered What type of roof contains panels that retain electricity even when off? A.Rain roof B.Cold roof C.Green roof D.Photovoltaic (Solar) roof - CORRECT ANSWER-D. Photovoltaic (solar) roof What building component may be mounted over doors and windows to prevent illegal entry? A.Truss assemblies B.Plywood sheathings C.Solar energy panels D.Security bars or grilles - CORRECT ANSWER-D. security bars or grilles

Additions to the structure, replacing fire escapes with enclosed stairways, and removing non-load- bearing walls are all types of: A.roof obstructions. B.security measures. C.permitted structural modifications. D.nonpermitted structural modifications. - CORRECT ANSWER-C. permitted structural modifications Which of the following movable windows includes a large number of narrow overlapping glass sections that swing outward? A.Jalousie B.Awning C.Pivoting D.Projecting - CORRECT ANSWER-A. Jalousie Which of the following BEST describes when structural collapse may occur? A.It can occur when all the factors are met. B.It can only occur before fire suppression. C.It can only occur during fire suppression. D.It can occur well after the fire is extinguished. - CORRECT ANSWER-D. It can occur well after the fire is extinguished In what fire stage is structural collapse very likely? A.Incipient B.Growth C.Fully developed D.Decay - CORRECT ANSWER-D. Decay What type of reaction releases energy in the form of heat and sometimes light? A.Kinetic B.Potential

C.Exothermic D.Endothermic - CORRECT ANSWER-C. Exothermic The process of ignition causes pyrolysis in solid fuels and ___ in liquid fuels. A.melting B.freezing C.vaporization D.kinetic reaction - CORRECT ANSWER-C. vaporization What is the most common form of ignition? A.Piloted B.Exothermic C.Endothermic D.Autoignition - CORRECT ANSWER-A. Piloted What product of combustion causes the most fire deaths? A.Toxic smoke B.Thermal energy C.Carbon dioxide D.Hydrogen cyanide - CORRECT ANSWER-A. Toxic smoke What product of combustion is the most common product in structure fires? A.Toxic smoke B.Thermal energy C.Hydrogen cyanide D.Carbon monoxide - CORRECT ANSWER-D. Carbon monoxide What type of fuel has a definite size and shape? A.Solid

B.Liquid C.Gaseous D.Chemical - CORRECT ANSWER-A. Solid Which of the following terms is used to refer to the process that can generate sufficient quantities of burnable vapors to ignite in the presence of a sufficient oxidizer? A.Pyrolysis B.Fire point C.Flash point D.Vapor pressure - CORRECT ANSWER-A. Pyrolysis What stage of fire development occurs when all the combustible materials in a compartment are burning? A.Incipient B.Growth C.Fully Developed D.Decay - CORRECT ANSWER-C. Fully Developed What aspect of fire development is a result of an increase in low-level ventilation prior to upper level ventilation? A.Rollover B.Backdraft C.Combustion D.Smoke explosion - CORRECT ANSWER-B. Backdraft Which of the following is a heat indicator for a possible backdraft? A.Smoke stained windows B.Turbulent smoke discharge C.Fire confined to a void space D.Contents with high heat release rate - CORRECT ANSWER-A. smoke stained windows

Which of the following BEST describes a design limitation of structural fire fighting personal protective equipment (PPE)? A. Keeps coat sleeves from riding up B. Provides protection from hot water C. Prevents heat transfer away from body D. Covers all portions of skin when moving - CORRECT ANSWER-C. prevents heat transfer away from the body Which of the following types of special protective clothing requires a personal flotation device? A. Ice rescue B. Technical rescue C. Proximity fire fighting D. Hazardous materials - CORRECT ANSWER-A. Ice rescue Which of the following BEST describes the frequency with which personal protective equipment (PPE) should be inspected? A. As dictated by manufacturers B. As a firefighter feels there is need C. When there is down time at the fire station D. At the beginning of shift and after every use - CORRECT ANSWER-D. At the beginning of each shift and after every use Which of the following BEST describes when SARs are used? A. For assessing industrial accidents B. For emergency medical incidents C. For working with particulate-producing tools D. For confined space rescues and technical rescue incidents - CORRECT ANSWER-D. For confined space rescues and technical rescue incidents

Which piece of protective breathing apparatus has the frame checked weekly for deterioration, dirt, and cracks? A. Hoses B. Facepiece C. Breathing air cylinder assembly D. Backplate and harness assembly - CORRECT ANSWER-B. Facepiece Which types of SCBA air cylinders are tested every five years? A. Steel and aluminum B. Fully wrapped KevlarTM C. Fully wrapped fiberglass D. Hoop-wrapped aluminum - CORRECT ANSWER-A. steel and aluminum During inspection, if a portable fire extinguisher is found deficient in weight by ___ percent it should be removed from service and replaced. A. B. C. D.12 - CORRECT ANSWER-C. 10 Which of the following can change a building's layout? A.Size-up B.Interior alterations C.Preincident surveys D.Personal observations - CORRECT ANSWER-B. interior alterations Which of the following should a firefighter sign in with before entry into an immediately dangerous to life and health (IDLH) area? A.Supervisor B.Team leader

C.Incident Safety Officer D.Rapid intervention crew or team (RIC/RIT) - CORRECT ANSWER-C. incident safety officer Which of the following rescue tool uses includes tools to drag materials away to free victims? A.Lifting B.Pulling C.Cutting D.Stabilizing - CORRECT ANSWER-B. Pulling What type of technical rescue involves physical hazards such as debris that is sharp, jagged, or unstable as well as exposed wiring and rebar? A.Water rescue B.Vehicle rescue C.Confined-space rescue D.Structural collapse rescue - CORRECT ANSWER-D. structural collapse rescue Damage when forcing a door can be justified by severity of emergency and: A.manpower available. B.seriousness of injury. C.speed needed for entry. D.tools needed for the job. - CORRECT ANSWER-C. speed needed for entry When is a K-tool used? A.To cut a padlock B.To pull lock cylinders C.To cut a section out of a panel D.To make an opening near a lock - CORRECT ANSWER-B. to pull lock cylinders How much clearance is needed when using a K-tool?

A.1/2 inch (13 mm) B.1 inch (25 mm) C.1 inches (38 mm) D.2 inches (51 mm) - CORRECT ANSWER-A. 1/2 (13mm) Which of the following provides firefighters rapid access to outward swinging latch doors? A.A-tool B.J-tool C.K-tool D.Shove knife - CORRECT ANSWER-D. shove knife Which of the following is used as the traditional approach to breaching a brick wall? A.Axe B.Crow bar C.Sledgehammer D.Battering ram - CORRECT ANSWER-D. Battering ram Which type of ladder is designed to be used as a self-supporting stepladder and as a single or extension ladder? A.Roof ladder B.Straight ladder C.Extension ladder D.Combination ladder - CORRECT ANSWER-D. combination ladder Which of the following statements about ladder placement is MOST accurate? A.Ladders should be placed to the side of openings including doors, and paths of travel. B.Strong points in building construction should not be considered when placing ladders. C.The Incident Commander designates the exact spot where the ladder butt should be placed.

D.The ladder butt should be placed as close as possible to the building to keep paths of travel clear. - CORRECT ANSWER-A.Ladders should be placed to the side of openings including doors, and paths of travel. Which of the following statements about assisting a victim down a ladder is the MOST accurate? A.Conscious victims are lowered facing the firefighter. B.The same lowering method is used for both conscious and unconscious victims. C.Victims must be protected from slipping and falling when climbing down a ladder. D.Other activity using the ladder can continue uninterrupted during rescue operations. - CORRECT ANSWER-C.Victims must be protected from slipping and falling when climbing down a ladder. Which of the following BEST describes a method for supporting the weight of an unconscious victim? A.Victim's body rests on rescuer's supporting knee B.Victim's body secured to rescuer with ladder belt C.Victim's legs placed between ladder rungs, weight supported on victim's thighs D.Victim placed in full-body harness and life-safety rope held by rescuer at tip of ladder - CORRECT ANSWER-A.Victim's body rests on rescuer's supporting knee Cutting a hole in the roof above the fire or opening existing roof access doors, scuttles, or skylights are all examples of: A.inlet ventilation. B.outlet ventilation. C.vertical ventilation. D.horizontal ventilation. - CORRECT ANSWER-C.vertical ventilation. Opening doors or windows is an example of: A.natural ventilation. B.vertical ventilation. C.hydraulic ventilation. D.mechanical ventilation. - CORRECT ANSWER-A.natural ventilation

Which type of water supply system may provide water under contract to a municipality, region, or single property? A.Public system B.Private system C.Natural system D.Industrial system - CORRECT ANSWER-B.Private system Which of the following is a natural freshwater source that may be used for water supply? A.River B.Ocean C.Swimming pool D.Water treatment facility - CORRECT ANSWER-A. river How is the amount of water needed for domestic use and fire protection calculated? A.Based on minimum daily water consumption B.Based on anticipated needs and fire protection daily usage C.Based on averages and maximum daily water consumption D.Based on history of consumption and estimates of anticipated needs - CORRECT ANSWER-D.Based on history of consumption and estimates of anticipated needs Which of the following reduces the volume and pressure of water available from hydrants? A.Friction loss B.Pressure loss C.Water hammer D.Pressure decline - CORRECT ANSWER-A.Friction loss A drafting operation will require a minimum of ___ inches (mm) of water above and below the hard intake strainer. A.6 (150)

B.12 (300)

C.24 (600)

D.36 (900) - CORRECT ANSWER-C.24 (600)

What type of fire hose damage can weaken the jacket which can lead to ruptures under pressure? A.Organic damage B.Thermal damage C.Chemical damage D.Mechanical damage - CORRECT ANSWER-A.Organic damage Which valve device is similar to a wye, but has an inlet and outlet of matching size combined with smaller outlets that take water from the main line? A.Hydrant valve B.Siamese appliance C.Water thief appliance D.Large-diameter hose appliance - CORRECT ANSWER-C.Water thief appliance Where might booster hose reels be mounted on the apparatus? A.In the cab B.On the rear bumper C.In rear compartments D.Below the pump panel - CORRECT ANSWER-C.In rear compartments Friction loss may be overcome by: A.curving the hoseline. B.decreasing hose size. C.increasing pump pressure. D.inserting in-line gauges in the layout. - CORRECT ANSWER-C.increasing pump pressure.

Which of the following types of fog nozzles provides a constant discharge rate throughout a range of patterns? A.Basic B.Constant pressure C.Constant gallonage D.Constant/select gallonage - CORRECT ANSWER-C.Constant gallonage Which statement about constant-pressure fog nozzles is MOST accurate? A.The operator can vary the flow rate while maintaining constant nozzle pressure. B.The operator can vary flow rate but must also change the nozzle pressure. C.Constant-pressure fog nozzles for handlines are only designed for low-flow rates. D.Constant-pressure fog nozzles are reliable when the operating pressure is less than 100 psi (700 kPa). - CORRECT ANSWER-A.The operator can vary the flow rate while maintaining constant nozzle pressure. Which of the following is a characteristic of nozzles designed to operate at pressures less than 100 psi (700 kPa)? A.Have more nozzle reaction B.Produce droplets of smaller size C.Produce lower-density fog patterns D.Produce fire streams with greater velocity - CORRECT ANSWER-C.Produce lower-density fog patterns Which action of fire fighting foam creates a barrier between the fuel and the fire? A.Cooling B.Aerating C.Separating D.Penetrating - CORRECT ANSWER-C.Separating Foam lowers surface tension of water, allowing it to ___ fires in Class A materials. A.cool B.smother

C.suppress D.penetrate - CORRECT ANSWER-D.penetrate Class A foam extinguishes and/or prevents ignition by: A.allowing water to penetrate fuels. B.creating a barrier between the fuel and the fire. C.preventing air from reaching the fuel or mixing with vapors. D.lowering the temperature of the fuel and adjacent surfaces. - CORRECT ANSWER-A.allowing water to penetrate fuels. Which of the following statements about fire fighting foams is MOST accurate? A.The majority of fire fighting foams are Class A and Class K. B.Class A foam is especially effective on hydrocarbon fuels and polar solvents. C.Foam works by forming a blanket of foam on the surface of burning liquid and solid fuels. D.Foam works by increasing the surface tension of water, making fire streams more cohesive to reach a greater distance. - CORRECT ANSWER-C.Foam works by forming a blanket of foam on the surface of burning liquid and solid fuels. When applied to solid fuels, Class A foam blankets the fuel, controls flames, then: A.changes the pH of the water. B.expands at a ratio of 20-to-1. C.dissipates into the air, leaving no residue. D.breaks down, releasing water to cool the fuel. - CORRECT ANSWER-D.breaks down, releasing water to cool the fuel. The proportioning method which uses an external pump or head pressure to force foam concentrate into the fire stream is: A.injection. B.eduction. C.premixing.

D.batch-mixing. - CORRECT ANSWER-A.injection. Which of the following foam proportioners may compromise firefighter safety since it is difficult to quickly relocate the components? A.In-line foam eductor B.Foam nozzle eductor C.Around-the-pump proportioner D.Compressed air foam system (CAFS) - CORRECT ANSWER-B.Foam nozzle eductor When using an in-line eductor, which of the following might cause foam concentrations to be too lean? A.Solid agent stick too cold to dissolve effectively. B.Air compressor filter clogged, dirty, or water-soaked C.Too little hose between eductor and discharge nozzle D.Foam concentrate inlet too far above surface of foam concentrate - CORRECT ANSWER-D.Foam concentrate inlet too far above surface of foam concentrate Which of the following foam generators produces foam by pumping foam solution through the nozzle in a fine spray? A.Fog nozzle B.Air-aspirating type nozzle C.Water-aspirating type nozzle D.Mechanical blower generator - CORRECT ANSWER-C.Water-aspirating type nozzle Poor-quality foam may result from: A.high pressure in the supply line. B.a short hose lay on the discharge side. C.air leaks at fittings causing a loss of suction. D.the nozzle being located too far below the eductor. - CORRECT ANSWER-C.air leaks at fittings causing a loss of suction.

A common reason for generating poor-quality foam is: A.equipment is older than five years. B.eductor and nozzle flow ratings match. C.nozzle remains fully open during the process. D.mixing different types of foam concentrate in the same tank. - CORRECT ANSWER-D.mixing different types of foam concentrate in the same tank. Which strategy is typically selected when property is not salvageable? A.Direct B.Indirect C.Offensive D.Defensive - CORRECT ANSWER-D.Defensive Which strategic transition may be necessary when the situation rapidly changes? A.Indirect to direct B.Direct to indirect C.Offensive to defensive D.Defensive to offensive - CORRECT ANSWER-C.Offensive to defensive Which of the following guidelines should be used when switching strategies? A.Turn off radios in order to maintain radio silence B.Abandon hoselines when strategy change is made C.Split away from team in order to cover more ground D.Maintain situational awareness to recognize changes in fire behavior - CORRECT ANSWER-D.Maintain situational awareness to recognize changes in fire behavior In which type of fire attack is water applied directly onto burning fuels until the fire is extinguished? A.Gas cooling B.Direct attack

C.Indirect attack D.Combination attack - CORRECT ANSWER-B.Direct attack Which type of fire attack is made through a window or other opening, directing the stream toward the ceiling to cool the room? A.Gas cooling B.Direct attack C.Indirect attack D.Combination attack - CORRECT ANSWER-C.Indirect attack Which of the following slows the transfer of heat to other combustibles and reduces the chances of overhead gases igniting? A.Gas cooling B.Direct attack C.Indirect attack D.Combination attack - CORRECT ANSWER-A.Gas cooling In fires in the upper levels of structures, which of the following determines the method of fire attack? A.Available hoselines B.Available personnel C.Location of the stairway D.Location of the standpipe - CORRECT ANSWER-D.Location of the standpipe In its pure form, natural gas is: A.butane. B.ethanol. C.propane. D.methane. - CORRECT ANSWER-D.methane

Which of the following is one of the FIRST priorities at a fire in a protected structure? A.Shutting a control valve B.Deploying a master stream C.Stopping the flow from a sprinkler D.Connecting to a fire department connection (FDC) - CORRECT ANSWER-D.Connecting to a fire department connection (FDC) What should be done if smoke is visible at an electrical vehicle incident? A.Chock wheels B.Secure vehicle C.Turn off ignition D.Wear full PPE and SCBA - CORRECT ANSWER-D.Wear full PPE and SCBA Which nonfire hazard may be found around military training areas? A.Explosives B.Animal traps C.Unstable trees D.Rolling or falling debris - CORRECT ANSWER-A.Explosives Which of the following best describes flash point of flammable liquids? A. Less than 100°F (38°C) B. Greater than 100°F (38°C) C. Each varies, but it is never less than 50°F (10°C) D. Each varies, but it is always higher than 50°F (10°C) - CORRECT ANSWER-A. Less than 100°F (38°C) Which of the following best describes ignition of combustible liquids? A. These can be ignited without pre-heating. B. These need pre-heating and vapor for ignition. C. These require foam and an external fuel source for ignition.

D. These must be heated above the flash point before igniting. - CORRECT ANSWER-D. These must be heated above the flash point before igniting. Where should the apparatus be located at a class B fire? A. Upwind and uphill of the incident B. Upwind and downhill of the incident C. Downwind and uphill of the incident D. Downwind and downhill from the incident - CORRECT ANSWER-A. Upwind and uphill of the incident Which of the following best describes a hazard to carbon dioxide fixed suppression systems? A. Skin irritation B. Oxygen depletion C. Increased visibility D. Depletion of water supply - CORRECT ANSWER-B. Oxygen depletion Damage caused by fire and smoke is referred to as: A.key damage. B.primary damage. C.secondary damage. D.involuntary damage. - CORRECT ANSWER-B.primary damage Damage resulting from fire suppression activities is referred to as: A.limited damage. B.primary damage. C.overhaul damage. D.secondary damage. - CORRECT ANSWER-D.secondary damage. Vulnerability to weather and vandalism following fire suppression activities are forms of: A.primary damage.

B.secondary damage. C.involuntary damage. D.specification damage. - CORRECT ANSWER-B.secondary damage. At what point do appropriate salvage procedures begin at a fire incident? A.After all fire personnel are on the scene B.Once the Company Officer determines it is time C.Once the last visual scan for remaining fire is complete D.Upon arrival, continuing until the last unit leaves the scene - CORRECT ANSWER-D.Upon arrival, continuing until the last unit leaves the scene Protecting the contents of rooms immediately below the fire floor with salvage covers while fire suppression operations are conducted is performing a: A.fire suppression activity. B.preincident plan activity. C.salvage operations procedure. D.overhaul operations procedure. - CORRECT ANSWER-C.salvage operations procedure Which of the following techniques for loss control allows water to run off without collecting in the depressions? A.By lifting and removing the floor covering B.By using one salvage cover for the entire room C.By creating one high point in the furniture group D.By putting pictures, curtains, and lamps on the bed - CORRECT ANSWER-C.By creating one high point in the furniture group Backpack-type water vacuum tanks normally have a capacity of: A.1 to 3 gallons (4 L to 11 L). B.4 to 5 gallons (15 L to 20 L). C.6 to 10 gallons (23 L to 38 L).

D.10 to 15 gallons (38 L to 57 L). - CORRECT ANSWER-B.4 to 5 gallons (15 L to 20 L). Which of the following is the main advantage to using spliced water chutes as catchalls during loss control? A.Can hold several hundred gallons of water B.Provides a water basin for immersing small burning objects C.Requires two submersible pumps to remove the water in carpet flooring D.As soon as water accumulates in the catchall, it can be drained to outside the fire incident structure - CORRECT ANSWER-D.As soon as water accumulates in the catchall, it can be drained to outside the fire incident structure All firefighting personnel should continue to use self-contained breathing apparatus (SCBA) until: A.the fire behavior has been determined. B.the fire has been completely extinguished. C.air monitoring confirms SCBAs can be safely removed. D.atmosphere has been determined toxic below 5 percent. - CORRECT ANSWER-C.air monitoring confirms SCBAs can be safely removed. The area of origin is the location: A.where the fire began. B.with the most charring. C.where ignition took place. D.with places where fire patterns can be determined. - CORRECT ANSWER-A.where the fire began. Signs of arson are determined when initial cause is indicated as: A.exterior or interior fire. B.structure or vehicle fire. C.natural or accidental fire. D.incendiary or undetermined fire. - CORRECT ANSWER-D.incendiary or undetermined fire.