Easy To Download NFPA CFPS Exam Dumps Updated 104 Questions
New Updated CFPS Exam Questions 2024
NEW QUESTION # 48
Critical Radiant Flux is used to classify
- A. exterior materials.
- B. roofing materials.
- C. interior floor finishes.
- D. interior wall finishes.
Answer: C
Explanation:
Explanation
Critical radiant flux is used to classifyinterior floor finishes. Critical radiant flux is a measure of the minimum radiant heat energy required to sustain flame propagation on a floor material or covering. It is determined by exposing a specimen to a radiant heat gradient and observing the distance from the ignition point to the flame-out point.The shorter the distance, the higher the critical radiant flux and the better the fire performance of the floor material or covering1.Critical radiant flux is used to classify floor materials and coverings according to their fire hazard and resistance, and to specify the minimum requirements for different occupancies and applications2.For example, the International Building Code (IBC) requires that interior floor finishes and coverings in exit access corridors and exit enclosures have a critical radiant flux of not less than
0.45 W/cm2, while those in other spaces have a critical radiant flux of not less than 0.22 W/cm23.Critical radiant flux is also used to evaluate the fire safety of floor materials and coverings in transportation vehicles, such as aircraft, trains, and buses4.
NEW QUESTION # 49
The greatest number of civilian home fire deaths can be attributed to what area of fire origin in the home?
- A. Kitchen or cooking area
- B. Garage or vehicle storage area
- C. Heating equipment room
- D. Common room, living room
Answer: D
Explanation:
Explanation
The correct answer is D. The greatest number of civilian home fire deaths can be attributed to the common room, living room, or family room area of origin in the home. According to a report by the NFPA, based on data from the National Fire Incident Reporting System (NFIRS) and NFPA's fire experience survey, 31 percent of the civilian home fire deaths in 2017-2021 occurred in fires that started in the common room, living room, or family room. This was followed by 29 percent of the deaths in fires that started in the bedroom or sleeping area, and 12 percent of the deaths in fires that started in the kitchen or cooking area. The common room, living room, or family room area of origin is also the leading area of origin for home fires and civilian home fire injuries, accounting for 24 percent and 21 percent of those incidents, respectively. Some of the common causes of fires in the common room, living room, or family room include smoking materials, heating equipment, electrical equipment, candles, and fireplaces. To prevent fires and fire deaths in the common room, living room, or family room, the NFPA recommends the following safety tips:
Keep smoking materials away from anything that can burn. Use deep, sturdy ashtrays and wet cigarette butts before discarding them.
Keep space heaters at least 3 feet away from anything that can burn. Turn them off when you leave the room or go to sleep.
Have a qualified electrician inspect and repair any faulty wiring or outlets. Avoid overloading circuits or extension cords. Unplug appliances when not in use.
Keep candles in sturdy holders and away from children, pets, and anything that can burn. Blow them out when you leave the room or go to sleep.
Have your chimney and fireplace cleaned and inspected annually by a professional. Use a metal or glass screen to keep sparks from flying out. Dispose ofashes in a metal container with a lid, and keep it outside at least 10 feet away from your home.
Install smoke alarms on every level of your home, inside each bedroom, and outside each sleeping area.
Test them monthly and replace the batteries at least once a year. Consider installing a home fire sprinkler system for added protection.
NEW QUESTION # 50
Fire alarm visible appliance source intensity is measured in
- A. lux.
- B. lumen.
- C. foot candle.
- D. candela.
Answer: D
Explanation:
Explanation
Fire alarm visible appliance source intensity is measured in candela, which is the unit of luminous intensity in a given direction. Candela is defined as the amount of light emitted by a single candle in a specific direction.
The intensity of a strobe light depends on the candela rating, the flash rate, and the flash duration. The higher the candela rating, the brighter the light. The National Fire Protection Association (NFPA) and the Americans with Disabilities Act (ADA) have established minimum and maximum candela ratings for fire alarm visible appliances in different locations and applications.References:Strobe Light Requirements: Proper location of visible notification ...;Handbook of Visual Notification Appliances for Fire Alarm Applications;Audible Visible Appliance Reference Guide - Fire - studylib.net
NEW QUESTION # 51
What type of fire pump has a pressure range that can exceed 300 psi (2,068 kPa)?
- A. Horizontal-end suction
- B. Split case
- C. Vertical turbine
- D. Suction in-line
Answer: D
Explanation:
Explanation
Fire pump
Explore
A suction in-line fire pump has a pressure range that can exceed 300 psi (2,068 kPa). This type of pump is a centrifugal pump that is installed in a vertical position with the suction and discharge connections in the same line. The pump is designed to handle high pressures and flows, and it is suitable for high-rise buildings and other applications that require high head.According to NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, a suction in-line fire pump can have a rated pressure of up to 360 psi (2,482 kPa)1.The other types of fire pumps mentioned in the question have lower pressure ranges, as shown in the table below2:
Type of fire pump
Pressure range (psi)
Pressure range (kPa)
Horizontal-end suction
40 to 150
276 to 1,034
Split case
40 to 150
276 to 1,034
Vertical turbine
40 to 150
276 to 1,034
Suction in-line
40 to 360
276 to 2,482
References:NFPA 20: Fire pump design | Consulting - Specifying Engineer;Understanding the Basics of Fire Pumps | Pumps & Systems
NEW QUESTION # 52
The principle fuels used in a modern grain dryer are natural gas, vaporized liquid propane, and
- A. fuel oil.
- B. hydrogen.
- C. methane.
- D. gasoline.
Answer: A
NEW QUESTION # 53
The Safety Class for propane refrigerant R-290 is
- A. B1.
- B. B2
- C. A3
- D. A2
Answer: C
Explanation:
Explanation
The safety class for propane refrigerant R-290 is A3, which means it has no toxicity but high flammability.
The safety class is determined by the ASHRAE Standard 34, which assigns a capital letter (A or B) for the toxicity level and a number (1, 2, or 3) for the flammability level of a refrigerant. Propane has a very low global warming potential and ozone depletion potential, but it also has a very low flash point and high auto ignition temperature, which make it highly flammable in the presence of ignition sources.References:Propane R-290 | Copeland US;R-290 Propane Refrigerant Fact & Info Sheet;Safety Data Sheet - Refrigerants; NFPA Fire Protection Handbook, 21st Edition, Chapter 3, Section 3.3.4.
NEW QUESTION # 54
For wet-pipe automatic sprinkler systems, the only proper way to test the operation of a vane-type water flow alarm initiating device is to open the
- A. alarm test by-pass valve at the system's main riser.
- B. check valve from the city connection.
- C. valve at the inspector's test connection.
- D. main (2 in. diameter) drain.
Answer: C
Explanation:
Explanation
valve at the inspector's test connection.
For wet-pipe automatic sprinkler systems, the only proper way to test the operation of a vane-type water flow alarm initiating device is to open the valve at the inspector's test connection. This is a small valve that is located at the end of a pipe that is connected to the sprinkler system, usually at the most remote or highest point. The inspector's test connection simulates the flow of a single sprinkler head and activates the vane-type water flow switch, which in turn triggers the fire alarm panel and the external alarm devices.Opening the valve at the inspector's test connection also allows the water to drain from the system, preventing corrosion and freezing1234 Opening the main (2 in. diameter) drain is not a proper way to test the operation of a vane-type water flow alarm initiating device, because it does not create enough flow to activate the switch. The main drain is used to drain the entire sprinkler system for maintenance or repair purposes, and it is usually located at the main riser or the fire department connection.Opening the main drain may also cause a pressure drop in the system, which could affect the performance of the sprinklers1234 Opening the alarm test by-pass valve at the system's main riser is not a proper way to test the operation of a vane-type water flow alarm initiating device, because it does not simulate the actual flow of a sprinkler head.
The alarm test by-pass valve is used to test the operation of the external alarm devices, such as the water motor gong or the electric bell, without activating the fire alarm panel. The alarm test by-pass valve is usually located near the alarm check valve or the water flow switch, and it allows water to flow through a small orifice to the alarm devices.Opening the alarm test by-pass valve does not create enough flow to activate the vane-type water flow switch1234 Opening the check valve from the city connection is not a proper way to test the operation of a vane-type water flow alarm initiating device, because it does not create any flow in the sprinkler system. The check valve from the city connection is used to prevent the backflow of water from the sprinkler system to the city water supply, and it is usually located at the fire department connection or the main riser.Opening the check valve from the city connection does not affect the water flow in the sprinkler system, and it does not activate the vane-type water flow switch1234 References:
Fire Sprinkler Flow Switch & Tamper Switch Inspection & Maintenance3
Sprinkler System Water Flow Device Testing - ORR Protection2
VSR-AT Auto-Test Waterflow Alarm Switch | Potter Electric4
WFDNA Series Vane-type Waterflow Detectors - Steel Fire Equipment5
NEW QUESTION # 55
Fire tests typically relate to two types of fire properties, fire resistance and
- A. smoke spread.
- B. reaction to fire.
- C. flame spread.
- D. length of fire.
Answer: B
Explanation:
Explanation
Fire tests typically relate to two types of fire properties, fire resistance and reaction to fire. Fire resistance is the ability of a building element or component to prevent the passage of heat and flames from one side to another, while reaction to fire is the response of a material or product in contributing to the development and spread of a fire. Fire resistance tests are usually performed on systems or assemblies, such as walls, floors, doors, or windows, while reaction to fire tests are usually performed on materials or products, such as sealants, insulation, cladding, or plastics.References:International Standards and Classifications for Fire Testing - Sika;Testing for Fire Resistance and Reaction to Fire - ICC NTA;'Reaction to Fire' Vs 'Fire resistance' - Ask HILTI;What is the difference between Reaction to Fire and Resistance to Fire ...;Reaction to Fire vs Resistance to Fire | Nullifire UK
NEW QUESTION # 56
All of the following Road Tunnel fire model types are used EXCEPT
- A. two-dimensional models.
- B. field models.
- C. one-dimensional models.
- D. zone models.
Answer: A
Explanation:
Explanation
Two-dimensional models are not a common type of road tunnel fire models. Most road tunnel fire models are either one-dimensional, zone, or field models. One-dimensional models use a simplified approach to describe the fire and smoke behavior along the tunnel axis, assuming uniform conditions across the tunnel cross-section. Zone models divide the tunnel into two or more zones, each with uniform properties, and apply mass and energy conservation equations to each zone. Field models use computational fluid dynamics (CFD) to solve the governing equations for mass, momentum, energy, and species transport in a three-dimensional grid, capturing the spatial and temporal variations of the fire and smoke phenomena. Two-dimensional models are rarely used for road tunnel fire simulations, as they cannot account for the complex three-dimensional effects of fire and ventilation in tunnels.
References:Design Fires in Road Tunnels | The National Academies Press;CFD Modelling of Fire Ventilation in Road Tunnels - Academia.edu;Findings of the International Road Tunnel Fire Detection Research ...1
NEW QUESTION # 57
When assessing industrial fire risks, the type of risk management conducted depends on the significance of the decision, the complexity of the problem, and
- A. time and cost limitations.
- B. evaluation methodologies.
- C. owner and management expectations.
- D. documentation requirements.
Answer: A
NEW QUESTION # 58
Which type of roof covering is most effective in preventing the spread of fires from flying brands?
- A. Class A
- B. Class B
- C. Class D
- D. Class C
Answer: A
Explanation:
Explanation
Class A roof coverings are the most effective in preventing the spread of fires from flying brands. Flying brands are burning embers or pieces of combustible material that are carried by the wind and can ignite other combustible materials or structures. Class A roof coverings are tested to withstand severe fire exposure from simulated fire sources, such as large burning brands, and do not produce flying brands themselves. Class A roof coverings include materials such as asphalt shingles, metal sheets, clay or concrete tiles, slate, and some types of synthetic membranes12. References:
Class A, B, and C Roof Ratings - UL
Fire-Resistant Roofs - Fire Safe Marin
NEW QUESTION # 59
The typical discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is?
- A. 0.75
- B. 0.95
- C. 0.8
- D. 0.62
Answer: D
Explanation:
Explanation
0.62
The discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is a dimensionless number that indicates the ratio of the actual flow rate to the theoretical flow rate of the nozzle. The discharge coefficient depends on the geometry and the flow conditions of the nozzle. According to the web search results, the typical discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is about 0.62, which means that the actual flow rate is about 62% of the theoretical flow rate.This value is based on the experiments conducted by the National Bureau of Standards (now NIST) and reported in the paper
"Discharge Coefficients of Fire Nozzles"1.The paper also provides a formula to calculate the discharge coefficient for different nozzle diameters and pressures123
NEW QUESTION # 60
Panic hardware devices are designed to facilitate the release of the latching device on a door with a pressure note xceeding
- A. 10 pounds (4.5 kg.) is applied in the direction of exit travel.
- B. 15 pounds (6.8 kg.) is applied in the direction of exit travel.
- C. 5 pounds (2.3 kg.) is applied in the direction of exit travel.
- D. 20 pounds (9.1 kg.) is applied in the direction of exit travel.
Answer: B
Explanation:
Explanation
Panic hardware devices are designed to facilitate the release of the latching device on a door with a pressure not exceeding 15 pounds (6.8 kg.) is applied in the direction of exit travel. This is the maximum force allowed by the codes and standards that regulate the use and installation of panic hardware, such as NFPA 101, NFPA
80, and ANSI/BHMA A156.3. The purpose of this requirement is to ensure that the doors can be easily opened by anyone in an emergency situation, without prior knowledge or special effort.References:Codes to Know for Panic Hardware - Facilitiesnet;Panic and emergency escape hardware | ASSA ABLOY | ASSA ABLOY; NFPA 101, Life Safety Code, 2023 Edition, Chapter 7, Section 7.2.1.7.2; NFPA 80, Standard for Fire Doors and Other Opening Protectives, 2023 Edition, Chapter 6, Section 6.1.3.5.1; ANSI/BHMA A156.3, Standard for Exit Devices, 2014 Edition, Section 4.1.1.
NEW QUESTION # 61
Which NFPA Standard provides requirements for the storage and handling of aluminum powders, flakes, and pastes?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Explanation
NFPA 484: Standard for Combustible Metals, 2020 Edition, provides requirements for the storage and handling of aluminum powders, flakes, and pastes. This standard covers the production, processing, finishing, handling, recycling, storage, and use of all metals and alloys that are in a form capable of combustion or explosion. It also covers operations where metal or metal alloys are subjected to processing or finishing operations that produce combustible powder or dust.NFPA 484 includes specific chapters for various metals and alloys, including aluminum and aluminum alloys12 References:
NFPA 484: Standard for Combustible Metals
NFPA 651: Standard for the Machining and Finishing of Aluminum and the ...
NEW QUESTION # 62
The duration of required fire flow in public supply systems ranges from
- A. 1-4 hours.
- B. 3-8 hours.
- C. 2-10 hours.
- D. 1-6 hours.
Answer: A
Explanation:
Explanation
The duration of required fire flow in public supply systems depends on the type of occupancy, construction, and exposure of the building, as well as the availability and reliability of the water supply. According to NFPA
1, Fire Code, Table 18.4.5.1.2, the minimum duration of fire flow for most occupancies ranges from 1 to 4 hours, with some exceptions for high-rise buildings, health care facilities, and special hazards. The fire flow duration is intended to provide enough water for fire suppression and exposure protection until the fire is under control or extinguished.References: NFPA 1, Fire Code, 2023 Edition, Section 18.4.5.1.2 and Table 18.4.5.1.2; NFPA Fire Protection Handbook, 21st Edition, Chapter 9, Section 9.2.2.
NEW QUESTION # 63
The removal of flammable vapors by displacement for cleaning a storage tank can be accomplished by displacement with air, inert gas and
- A. sodium bicarbonate
- B. absorbant
- C. water
- D. earth
Answer: C
Explanation:
Explanation
The removal of flammable vapors by displacement for cleaning a storage tank can be accomplished by displacement with air, inert gas, and water. Water is a common method of displacing flammable vapors from tanks, as it is readily available, inexpensive, and non-reactive with most fuels. Water can be sprayed into the tank to create a water seal that prevents the vapors from escaping and reduces the oxygen concentration in the tank. Water can also be used to rinse the tank walls and remove any residual fuel. However, water displacement may not be suitable for some tanks that contain water-sensitive or water-soluble fuels, or for tanks that have limited drainage or disposal facilities.
References:ust permanent closure requirements - Nevada;A Guide to Safety in Confined Spaces - CDC Stacks;Fire Explosion Prevention - Visual Encyclopedia of Chemical Engineering ...
NEW QUESTION # 64
For combustion to take place, a combustible material, an oxidizing agent, and an ignition source are required.
The exception is
- A. radiation diffusion.
- B. dielectric heating.
- C. spontaneous combustion.
- D. conduction transfer.
Answer: C
Explanation:
Explanation
Spontaneous combustion is the exception to the requirement of a combustible material, an oxidizing agent, and an ignition source for combustion to take place. Spontaneous combustion is a phenomenon in which a material can ignite without any external heat or flame, due to a chemical reaction within the material that generates enough heat to reach the ignition temperature. Spontaneous combustion can occur in certain materials that are prone to self-heating, such as oily rags, hay, coal, and compost. Spontaneous combustion is a type of smoldering combustion, which is a slow, low-temperature, flameless form of combustion.References:
Fire Protection Handbook, 20th Edition, Volume 1, Chapter 2, Section 2.2.1.11 NFPA 921: Guide for Fire and Explosion Investigations, 2021 Edition, Section 4.3.12
NEW QUESTION # 65
Which foam extinguishing agent can be proportioned into final concentrations of 1%, 3%, and 6%?
- A. Aqueous Film-Forming Agents (AFFF)
- B. Film-Forming Fluoroprotein Agents (FFFP)
- C. Protein Foaming Agents (P)
- D. Low-Temperature Foaming Agents
Answer: A
Explanation:
Explanation
Aqueous film-forming agents (AFFF) are synthetic foam concentrates that can be proportioned into final concentrations of 1%, 3%, and 6%, depending on the type of fuel and application method12. AFFF forms a thin aqueous film on the surface of the flammable liquid, which prevents vapor release and provides rapid fire knockdown and extinguishment3. AFFF is suitable for Class B fires involving hydrocarbon fuels such as gasoline, diesel, kerosene, etc. References:
Fire Fighting Foams - Chemguard
Extinguishing foam: types, operation and application areas
[NFPA 11: Standard for Low-, Medium-, and High-Expansion Foam]
NEW QUESTION # 66
Wet chemical extinguishing agents when sprayed on a grease fire, extinguish the fire by
- A. Removal of the fuel
- B. Smothering and cooling
- C. Removal of the radical free agent
- D. Radiation shielding
Answer: B
Explanation:
Explanation
Wet chemical extinguishing agents, such as potassium acetate and potassium citrate, when sprayed on a grease fire, extinguish the fire by smothering and cooling. The wet chemical agent reacts with the hot grease and forms a layer of soap-like foam on the surface of the fat, which acts as an insulation between the hot grease and the atmosphere, preventing the escape of combustible vapors and oxygen supply.The wet chemical agent also absorbs heat from the grease and lowers its temperature below the ignition point12 References:
What is the Difference Between a Wet and Dry Chemical Fire ...
Wet Chemical (Class K) Fire Extinguisher - Portable - WFX
NEW QUESTION # 67
Environmental Protection Agency standards require solid waste be treated as hazardous if it is a listed waste and/or meets the characteristics prescribed by the standard for toxicity, reactivity, corrosivity, and
- A. treatability.
- B. lignitability.
- C. compactability.
- D. solubility.
Answer: B
Explanation:
Explanation
Hazardous waste
Explore
The correct answer is C. Environmental Protection Agency (EPA) standards require solid waste be treated as hazardous if it is a listed waste and/or meets the characteristics prescribed by the standard for toxicity, reactivity, corrosivity, andignitability.A listed waste is a waste that appears on one of the four lists of hazardous wastes in the Code ofFederal Regulations (CFR) part 261 subpart D1.A characteristic waste is a waste that exhibits one or more of the following traits: toxicity, reactivity, corrosivity, or ignitability2.
Toxicity is the ability of a waste to leach harmful chemicals into the environment. Reactivity is the tendency of a waste to undergo violent chemical reactions or generate toxic gases. Corrosivity is the property of a waste to corrode metals or damage living tissues.Ignitability is the capacity of a waste to catch fire under certain conditions2.These characteristics are defined by specific tests and criteria in the CFR part 261 subpart C3.The EPA standards for hazardous waste are based on the Resource Conservation and Recovery Act (RCRA), which is the federal law that regulates the management of solid and hazardous waste in the United States4.
NEW QUESTION # 68
To be considered a family day-care home, what is the maximum allowable number of clients?
- A. Two
- B. Four
- C. Twelve
- D. Six
Answer: D
Explanation:
Explanation
The maximum allowable number of clients for a family day-care home varies by state and territory, but generally ranges from four to six children unrelated to the operator. A family day-care home is a facility in which a small group of children receive child care services in the provider's own home, such as a house, apartment, or condo unit1. To ensure a safe care environment, states and territories use child care licensing regulations to limit the number of children, as well as the number of infants and toddlers, that can receive care in a family day-care home1. Some states and territories may also offer certification or registration to help ensure some basic health and safety standards in certain home-based child care programs1. To learn more about how your state or territory regulates family day-care homes, you can visit the child care consumer education website and child care resource and referral agency for your state or territory1. References:
Family Child Care Homes | Childcare.gov
NEW QUESTION # 69
The minimum width of a doorway in a means of egress to accommodate a person in a wheelchair is
- A. 28 inches (711 mm).
- B. 36 inches (914 mm).
- C. 40 inches (1016 mm).
- D. 32 inches (813 mm).
Answer: D
Explanation:
Explanation
The minimum width of a doorway in a means of egress to accommodate a person in a wheelchair is 32 inches (813 mm).This is based on the requirements of the Americans with Disabilities Act (ADA) and the International Building Code (IBC), which both specify that doors in a path of egress and doors on an accessible route must have a clear opening width of at least 32 inches (813 mm)12. This width allows enough space for a person in a wheelchair to maneuver through the doorway without difficulty. A wider doorway may be preferable for some types of wheelchairs or other assistive devices, but 32 inches (813 mm) is the minimum standard for accessibility and safety.References:DECODED: Calculating the Egress Width of Door Openings - I Dig Hardware;Digital Codes.
NEW QUESTION # 70
Which of the following would NOT be an appropriate purpose for employing a guard service to protect a property against fire loss?
- A. To facilitate and control the movement of persons into, out of, and within the property
- B. To protect the property at times when the management is not present
- C. To perform routine housekeeping and equipment maintenance operations during nonproduction hours
- D. To carry out procedures for the orderly conduct of some operations on the property
Answer: C
Explanation:
Explanation
The correct answer is C. To perform routine housekeeping and equipment maintenance operations during nonproduction hours would NOT be an appropriate purpose for employing a guard service to protect a property against fire loss. A guard service is typically hired to provide security and protection for a property, not to perform other tasks that are unrelated to fire prevention or control. Housekeeping and equipment maintenance operations should be done by qualified and authorized personnel who are trained and equipped to handle any potential fire hazards. A guard service may not have the necessary skills, tools, or authority to perform these operations safely and effectively.Moreover, these operations may interfere with the guard service's primary duty of monitoring and patrolling the property for any signs of fire or intrusion12345
NEW QUESTION # 71
What type of load is the weight of items such as furnishings, people, and equipment?
- A. Live
- B. Residual
- C. Dead
- D. Static
Answer: C
Explanation:
Explanation
The weight of items such as furnishings, people, and equipment is called dead load. Dead load is the permanent load that is applied to a structure or a component of a structure1. It includes the weight of the structure itself, as well as any fixed attachments or equipment2. Dead load is one of the factors that determines the fire resistance rating of a structure or a component3. References:
NFPA 557: Standard for Determination of Fire Loads for Use in Structural Fire Protection Design An Overview of Fire Protection for Structural Engineers SFPE Handbook of Fire Protection Engineering, 5th edition
NEW QUESTION # 72
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Updated Free NFPA CFPS Test Engine Questions with 104 Q&As: https://dumpsvce.exam4free.com/CFPS-valid-dumps.html
