OSFM Basic Firefighter Operations (BFO) Module B Practice Test

These questions are part of the practice quiz. Start practicing

• When is fire hose visual inspection required to occur?
• For roll-up doors, what is the appropriate cut type for installation?
• How many firefighters are generally required for a long backboard rescue?
• True or False: The 2-in 2-out rule always applies during firefighting operations.
• How often should ground ladders be inspected?
• What is the primary reason for checking hydrants annually?
• What is the flow rate range for large-diameter hose (LDH)?
• What is the type of glass typically used in car windshields?
• What is the flow rate for a low-volume nozzle?
• What is the maximum height for aerial ladders according to NFPA 1901?
• What type of roof is most likely to have parapet walls?
• What is the typical length of preconnected lines?
• What does the stack effect in firefighting indicate?
• What is the typical floor-to-windowsill height in residential buildings?
• In ladder terminology, what is a 'rung'?
• What is indicated by a black area in wildland firefighting?
• What is the typical length range for roof ladders?
• What does the term 'neutral plane' refer to in a firefighting context?
• What is described by the term "smoke inversion"?
• What is a common hazard found in confined space fires?
• What component of a ladder provides stability and prevents slipping?
• When dealing with a dry hydrant, what is its main function?
• What feature is characteristic of a ledge door?
• What is the main use of a council rake in wildland firefighting?
• What characteristic defines high expansion foam?
• What does a pincer attack involve in wildland firefighting?
• In an oriented search method, who remains outside of the doorway?
• Which search method requires a lot of training and coordination and is typically used by RIT?
• Approximately how many vehicle fires are reported each year?
• What does "flow pressure" measure during a hydrant test?
• Which fuel type generally requires 100 hours to demarcate?
• When is an indirect attack typically used?
• What is the description of slash in fire context?
• What is defined as the area between the fingers of fire?
• What is a common cause of pressure loss in hoses?
• What is the primary purpose of a foam eductor?
• What does "residual pressure" indicate in a firefighting system?
• When the maximum amount of water is flowing, what is the residual pressure?
• What is the required frequency for testing ground ladders?
• How often should hydrants be checked for operability?
• What is the defining characteristic of a slab door?
• What is the minimum height for the center of a hose outlet on a hydrant?
• How do attack hoses differ from supply lines?
• During overhaul, a rekindle can occur even if what percentage of the fire is extinguished?
• What is a potential problem with using a door for natural ventilation?
• What is the purpose of wye lines in firefighting?
• Which feature is characteristic of an A-frame ladder?
• What factors contribute to static pressure in a water system?
• What is the typical approach to managing lumberyard fires?
• What is the typical length of hard suction hose?
• In a single doughnut hose roll, where are the couplings positioned?
• Which method is advised for spraying foam on vehicle fires?
• Which type of ladder is typically used for accessing roofs?
• What does a wye fitting do in hose operations?
• What is the primary goal of an offensive attack in firefighting?
• When fighting vehicle fires, how far away should you start your attack?
• In terms of pressure, how do attack hoses behave compared to supply lines?
• What could be an implication of improper natural ventilation?
• Who is responsible for determining when it is safe to remove SCBA during overhaul operations?
• What defines the physical properties of a booster line?
• A ladder I-beam is most commonly made of which material?
• What does a green hydrant signify about its water flow capability?
• What is the recommended distance for placing hydrants in residential areas?
• Supply hoses must be tested to what minimum pressure?
• What technique involves burning vegetation in front of an approaching fire?
• What is the correct angle for ladder placement for safety?
• How often should a portable generator be tested and run?
• What does the term 'grade' refer to in construction terms?
• How is a butterfly valve operated?
• What is a direct attack in wildland firefighting?
• What is the purpose of a case-hardened screw in door locks?
• Which carry method is considered best for navigating through doorways and narrow passageways?
• Where do salvage crews generally initiate operations during a fire?
• Why is the stack effect particularly noted in winter?
• During annual testing, what is the common practice for fire hose length testing?
• What is the maximum allowed length for portable ladders?
• What is considered the most efficient method for protecting a room's contents during a fire, aside from moving them outside?
• Where should a search rope be anchored in relation to the floor?
• Which of the following is NOT a category of Class B foam?
• When carrying hose up a ladder, firefighters should be spaced out every how many feet?
• At what temperature does the risk of flashover typically occur?
• What is a sign to look for during overhaul when assessing fire damage?
• What is the appropriate foam percentage ratio for hydrocarbons when using Class B foam?
• What is the primary function of compressed-air foam systems in wildfire management?
• What type of materials is Class A foam primarily used to combat?
• What is the purpose of NFPA 24?
• Which factor is NOT considered a risk for fire hose damage?
• What is the primary function of a utility ladder?
• What does a triangular roof cut help prevent during firefighting?
• What is the height distance from floor to windowsill in commercial buildings?
• How far behind the nozzleman should the backstep be positioned?
• What component is designed to prevent the beams of a wooden ladder from separating?
• What do compressed-air foam systems primarily target in fire suppression?
• Which type of door incorporates a stop directly built into its frame?
• What is the maximum time recommended for searching an average-sized house?
• What type of fire attack is primarily used for exposure protection?
• Where are adults commonly located during search and rescue operations?
• How often should visual inspections of fire hoses be conducted?
• When performing a two-person carry, which is a key factor to ensure safety?
• What is the flow rate for a 1.5-inch hose?
• Which two firefighters can effectively transport a 35-foot extension ladder?
• What is considered aerial fuel?
• What does the term "area of origin" refer to in wildland fire terminology?
• What is the primary reason for venting in firefighting operations?
• Which term is associated with the structural part that helps maintain the integrity of ladder beams?
• What is the goal of salvage efforts during firefighting?
• What does the acronym O-VEIS stand for in search methods?
• What is a Siamese connection used for?
• How much water can tankers/tenders typically carry?
• Which of the following is considered minimum protection when handling hose?
• What is the recommended distance to park fire apparatus behind a burning vehicle?
• What is a floor runner in firefighting terminology?
• What is a key feature of post-indicator valves (PIV)?
• What is a significant difference between portable generators and apparatus-mounted generators?
• What do parapet walls do on flat roofs?
• What can be the speed of hot gases during flashover under no wind conditions?
• Which of the following is not a common hazard in wildland firefighting?
• According to NFPA 1931, what is the primary focus of the design of fire ground ladders?
• What is the primary purpose of using foam in firefighting?
• What factors influence friction loss in firefighting hoses?
• Why should portable generators never be run inside a building?
• Which of the following is an example of heavy fuels?
• What is a fire shelter used for in wildland firefighting?
• What is the minimum height that a ladder truck must have in terms of ladder reach?
• What are partitions in construction?
• Which hydrant color represents a flow capability of 1500 gpm or more?
• What is the ideal officer placement when advancing a line into a building?
• Why is a two-person chair carry beneficial for certain victims?
• What type of ladder is specifically designed for use on uneven ground?
• What is the purpose of a McLeod tool in wildland firefighting?
• What is a key feature of a fixed gallonage fog nozzle?
• What is considered the biggest hazard during the overhaul process?
• Booster hoses are typically carried on hose reels of what length?
• What type of lock is a mortise lock?
• What identifies the role of the officer in an oriented search?
• What is the ideal angle for setting up a ladder for stability?
• Where is the outside stem and yoke valve typically located?
• The ideal hose line crew consists of how many people?
• What is the typical size range of supply hoses used in firefighting?
• What is one major factor that affects convection currents during natural ventilation?
• What is the minimum operating pressure for smooth bore nozzles?
• What is the maximum water offloading capacity of a dump valve on a mobile water supply apparatus?
• What is referred to by the term "kerf cut"?
• What should be done if individual sprinkler heads cannot be plugged?
• What can occur when smoke is trapped during smoke inversion?
• What structure is designed to stop a door from swinging past a certain point?
• Which tool is also known as a j tool in firefighting?
• How much water can a 5-inch supply line typically deliver?
• When should nozzles be checked for functionality?
• In a flanking attack, how many crews are required?
• What is a common use for portable ladders in firefighting operations?
• Which foam is designed to be effective against polar solvents?
• What is a characteristic of fog nozzles compared to smooth bore nozzles?
• What is the primary function of primary feeders in a water supply system?
• According to NFPA 1983, which type of equipment is essential for life safety operations?
• What is the primary function of batch mixing in firefighting?
• Which of the following sizes are considered supply lines in firefighting?
• What does it mean when a ventilation team operates in conjunction with an entry/suppression team?
• Which of the following is NOT a common hose load for preconnected attack lines?
• What is the two-person seat carry primarily used for?
• Which tool is specifically a combination of a rake and hoe for wildland firefighting?
• What type of water application is recommended when flashover is imminent?
• What is the weight of 50 feet of dry 2.5" hose?
• What is the maximum length of elevating platform apparatus as per NFPA regulations?
• What does a pitot gauge measure?
• What does NFPA 1906 cover?
• How many total feet of ladders are required for ladder trucks?
• How much ladder length is typically required above a roofline for stability?
• What technique is used for cooling walls and ceilings when flashover is imminent?
• Which NFPA standard pertains to the use, maintenance, and service of ground ladders?
• What characteristic of medium diameter hoses makes them versatile?
• Which ladder component is responsible for providing a secure grip when climbing?
• Which type of roof cut is specifically used for flat metal roofs?
• Where are children often found during a fire situation?
• What is another term for a team search that utilizes a rope?
• What is a significant indicator of potential hotspots during overhaul besides visual signs?
• Which ladder type can be extended to reach higher areas?
• At what pressure should sprinkler systems generally be fed?
• Which standard governs the inspection, care, maintenance, and testing of fire hoses?
• What characterizes low expansion foam?
• What is the typical application of a forestry line?
• What is the most common coupling size for both wye and Siamese fittings?
• What is the flow rate range for a 2-inch hose?
• What is the main function of power inverters?
• Class A foam is used primarily for which type of fires?
• What is the standard length of small diameter and master diameter hoses?
• Which type of foam is generally recommended for use with alcohol-resistant foam?
• What type of fuel is characterized by a diameter of 0.25-1 inch?
• How often should hoses be tested for pressure?
• What type of shelter is described as thin, reflective-foil, and quickly deployable?
• Which type of fuel burns more easily?
• What type of valve is commonly used for main control valves in sprinkler systems?
• Which types of ladders generally require stay poles for added stability?
• What is meant by defensible space in wildland firefighting?
• What is the primary function of a water chute in firefighting?
• Which term refers to the top or bottom section of a trussed beam?
• What is the flow rate range for handline nozzles?
• What is the typical diameter for a master stream device hose?
• What is the purpose of a coordinated attack in firefighting?
• What is an appropriate use for a single doughnut hose roll?
• Is sounding an adequate method for determining roof stability?
• What feature does a Pulaski axe have that makes it suitable for wildland firefighting?
• What is the purpose of the BAM BAM tool?
• During firefighting operations, what is the main purpose of using a secondary cut?
• What is a characteristic of a kerf cut?
• What should be done before applying water to gas cylinders in a fire?
• What is a key characteristic of the area designated as a pocket in wildland firefighting?
• What does the term "normal operating pressure" refer to?
• What is the most efficient method for removing unresponsive victims from dangerous locations?
• What is the characteristic of the opposing stack effect?
• Where should a firefighter connect to a standpipe in relation to a fire?
• What is the typical length range for combination ladders?
• What is the term used to describe the transparent part of a window?
• Which type of nozzle operates at lower pressure and provides greater penetration?
• Which tool is primarily used for lock cylinders?
• What is the typical length of a Fresno ladder used for attic access?
• What does an orange hydrant indicate regarding water flow rate?
• What is the typical water pressure range for water mains?
• What does a red hydrant signify?
• What is the minimum pressure required for a foam eductor to operate effectively?
• What does NFPA 1977 address?
• Which type of foam is especially suitable for spill-related fires?
• Which fire extinguishing agents are recommended for Class C fires?
• What is the goal of a flanking attack method?
• What is the main difference between a dry standpipe and a wet standpipe?
• What specification does NFPA 1931 set for the design of fire ground ladders?
• What is the diameter of small diameter hoses used in firefighting?
• What is the maximum length of a straight or roof ladder that one firefighter can carry?
• What is the maximum pressure specification for supply hoses?
• Where should a positive vent fan NOT be placed?
• What does a green area represent in wildland firefighting?
• Which of the following is NOT a cause of fire hose damage?
• What is the length range for folding ladders?
• In commercial or industrial areas, what is the distance between hydrants?
• Stay poles are required on ladders of what minimum length?
• What is one way to repair a salvage cover?
• What type of ladder is specifically designed for lowering a rescuer into a trench or manhole?
• For every 15 feet of height, how much additional ladder length is required?
• How many rungs must extend above the roofline for safety?
• What is the maximum distance an in-line eductor should be from the nozzle?
• How much supply hose does a typical fire engine carry?
• What is the key difference between a booster line and a forestry line?
• What is the primary purpose of a ladder's 'base'?
• What is the characteristic feature of a cylindrical lock?
• What distinguishes medium expansion foam from other types?
• Which factor does NOT affect the efficiency of natural ventilation?
• When is natural ventilation typically utilized in firefighting?
• What is a primary challenge when utilizing two-person walking assistance for victims?
• What is the approximate flow rate for a 2.5-inch hose?
• What is the primary function of distributors in a water distribution system?
• What type of door is typically constructed with multiple panels for aesthetic and functional purposes?
• Why is a direct attack often considered risky?
• What is the maximum pressure specification for attack hoses?
• Which method helps in reducing the risk of heat exposure to firefighters during a rescue operation?
• What term describes the traveling edge of a wildland fire?
• What is the maximum length of fire hose that should be used during annual testing?
• What is a water thief in the context of firefighting equipment?
• What is the minimum cutting size for roof ventilation?
• What is the flow rate for a 1-inch hose?
• What is the main characteristic of medium fuels?
• What is the primary function of the NFPA 1142 standard?
• What is the common height range for commercial floor-to-floor construction?
• What is the typical height of residential floor-to-floor construction?
• What is the minimum pressure required for a hydrant to be operable?
• In a left hand search, which direction do firefighters turn at corners?
• What is a transitional attack in firefighting?
• What is the main purpose of a standard search method?
• What does the risk of flashover correlate with regarding ceiling temperatures?
• What is the typical flow rate of a 5" hose flowing from a hydrant over a distance of 500 feet?
• What components make up a municipal water system?
• What does compressed air foam (CAF) typically adhere to?
• At what pressure should attack hoses be tested?
• What is one of the primary strategies of an indirect attack?
• When does a secondary search typically occur?
• When does the overhaul process begin?
• What is the main purpose of large diameter hose in firefighting?
• How does an automatic adjusting fog nozzle respond to pressure changes?
• What is the minimum required distance from power lines when positioning a ladder?
• What factor does not affect wildland fires?
• For interior fire attack, what is the typical diameter of hose used?
• Which hose loads are not suitable for large-diameter hose (LDH)?
• What is the primary function of Class B foam?
• What is considered a small diameter hose used in firefighting?
• Which fuel type is characterized by having a diameter of 0.25 inches or less?
• What does a "louvre cut" typically involve?
• What does the abbreviation "gpm" stand for in firefighting water flow?
• What is the maximum length that two firefighters can carry an extension ladder?
• What tools should be available during the overhaul operations?
• Which type of glass is commonly used for rear and side windows on vehicles?
• What is the flow rate for a 1.75-inch hose?
• What is the primary use of the trench cut method?
• What is the weight of 50 feet of 2.5" hose when charged?
• What distinguishes direct attack from indirect attack?
• What distinguishes secondary feeders from primary feeders?
• What is the definition of soffit in the context of firefighting?
• What is the purpose of a trench cut in firefighting operations?
• Which nozzle type is specifically designed for use in cellars and attics?
• What is the weight limit of fire ground ladders?
• What should firefighters be cautious of when performing an O-VEIS search?
• How should a firefighter and a victim be positioned when rescuing with a ladder?
• Which of the following is a hazard associated with wildland firefighting?
• How does NFPA 1901 classify aerial fire apparatus?
• What type of wood door has a simple flat panel design without additional stopping mechanisms?
• What type of hose can be used for both attack and supply?
• How should the search team approach a secondary search?
• What action is taken during a backfiring technique?
• When painting fire ground ladders, how much of the top and bottom should remain unpainted?
• Which factor contributes to the fire triangle?
• Which type of glass is typically known for its strength and ability to shatter into small, blunt pieces?
• Which type of hose can be used as either a supply line or an attack line?
• During an oriented search, how many searchers typically accompany the officer?
• What type of glass is known for being unable to be cut or broken using conventional tools?
• How much water can portable pumps deliver?
• What is the recommended angle for setting up ladders?
• What is the diameter classification for large diameter hose?
• What is the primary characteristic of ground duff?
• What type of fuel includes dried vegetation such as leaves and grass?
• Which type of search method involves two or more members covering the same area together?
• What is considered a medium diameter hose in firefighting?
• What type of nozzles typically operate as "handlines only"?
• How much water do wildland firefighting apparatus typically carry?