[2025年05月01日] 検証済みのCFPS問題集と230格別な問題
CFPS問題集合格保証付きの合格できるCFPS試験2025年更新
NFPA CFPS 認定試験の出題範囲：
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質問 # 63
A multistage centrifugal fire pump is defined as
- A. requiring more than one input location connection.
- B. having two or more impellers on one shaft as a single unit.
- C. being able to operate with a diesel, steam or electric driver.
- D. a pump installed on more than one floor or one building.
正解：B
解説：
Explanation
Fire pump
Explore
A multistage centrifugal fire pump is defined as having two or more impellers on one shaft as a single unit. A multistage centrifugal pump is a type of centrifugal pump that uses multiple impellers to increase the pressure and flow of water.Each impeller acts like a single-stage pump within a chain of pumps, and the water passes through each impeller in series, gaining pressure and velocity at each stage1.A multistage centrifugal fire pump is used to provide high-pressure water for fire protection systems, especially in high-rise buildings or large industrial facilities2.A multistage centrifugal fire pump can be driven by an electric motor, a diesel engine, or a steam turbine3.References:
Our Guide to Multistage Centrifugal Pumps | C&B Equipment
Fire Pump Types | NFPA
NFPA 20: Changes to the fire pump standard - Consulting
質問 # 64
Which dry agent is considered twice as effective as ordinary sodium bicarbonate-based dry chemical?
- A. Potassium bicarbonate
- B. Lithium chloride
- C. Potassium sulfide
- D. Monoammonium phosphate
正解：D
質問 # 65
One of the FBI classifications for terrorism is:
- A. individual.
- B. political.
- C. domestic.
- D. state-sponsored.
正解：A
質問 # 66
The three categories of potentially dangerous crowd situations for crowd management are:
- A. Critical flow, restricted flow, and directed flow
- B. Combative, reluctant, and leaderless group
- C. Critical occupancy, flight response, and craze
- D. Agitated, combative, and excessive occupancy
正解：C
質問 # 67
Wet chemical extinguishing agents when sprayed on a grease fire, extinguish the fire by
- A. Removal of the fuel
- B. Radiation shielding
- C. Removal of the radical free agent
- D. Smothering and cooling
正解：D
解説：
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
質問 # 68
In compliance enforcement procedures, a permit authorizes the performance of a specify activity, while which of the following grants permission to conduct or engage in any operation or act for which a level of approval is required?
- A. Authorization
- B. Certificate
- C. License
- D. Warrant
正解：A
質問 # 69
All of the following Road Tunnel fire model types are used EXCEPT
- A. field models.
- B. one-dimensional models.
- C. zone models.
- D. two-dimensional models.
正解：D
解説：
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
質問 # 70
When storing Class IB flammable liquids outdoors in portable containers, what is the maximum quantity and height allowed for composite Intermediate Bulk Containers (IBCs) per pile?
- A. 22,000 gallons and 18 ft
- B. 4,400 gallons and 14 ft
- C. 8,800 gallons and 12 ft
- D. Not permitted for composite IBCs
正解：A
質問 # 71
Irritant effects from exposure to fire atmospheres are normally considered by combustion as being of which two types?
- A. Toxic and Non-Toxic
- B. Major and Minor
- C. Dangerous and Not Dangerous
- D. Sensory and Pulmonary
正解：D
質問 # 72
Which system is used to communicate with public officials and the public so protective measures can be implemented?
- A. Homeland Security Information Bulletins
- B. Homeland Security Advisory System
- C. Color-coded threat-level system
- D. Homeland Security Threat Advisories
正解：C
質問 # 73
The incident command system (ICS) under the National Incident Management System (NIMS) has how many major functional areas?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 74
The NBS smoke chamber was developed specifically to measure.
- A. Color of smoke
- B. Density of smoke layer
- C. Temperature of smoke
- D. Obscuration by smoke particulates
正解：B
解説：
質問 # 75
Which type of radiation is the most harmful to the human body?
- A. Gamma
- B. Beta
- C. Delta
- D. Omega
正解：C
質問 # 76
In an area used for sleeping, the minimum Sound Pressure Level (SPL) required of the fire alarm system is:
- A. 65 dBA
- B. 75 dBA
- C. 70 dBA
- D. 80 dBA
正解：D
質問 # 77
When evaluating the hydraulic properties of water for fire protection system, what is the measurement of a fluid's resistance to flow?
- A. Pressure
- B. Density
- C. Velocity
- D. Viscosity
正解：D
解説：
Explanation
The measurement of a fluid's resistance to flow is calledviscosity.Viscosity is the property of a fluid that describes how easily it can deform or move when subjected to a shear stress, such as the force exerted by a pipe wall or a pump1. A fluid with high viscosity, such as honey, resists flow and requires more pressure to overcome the friction between its layers.A fluid with low viscosity, such as water, flows easily and has less frictional resistance2.Viscosity affects the hydraulic properties of water for fire protection systems, such as the flow rate, pressure loss, and pump power3. Viscosity is usually expressed in units of pascal-second (Pa s) or centipoise (cP) for liquids, and is dependent on the temperature and composition of the fluid.References:
Viscosity | Definition, Facts, Formula, Units, & Examples
Viscosity - The Physics Hypertextbook
Fire Pump Types | NFPA
[12.4: Viscosity and Laminar Flow; Poiseuille's Law]
質問 # 78
Critical Radiant Flux is used to classify
- A. interior wall finishes.
- B. exterior materials.
- C. roofing materials.
- D. interior floor finishes.
正解：D
解説：
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.
質問 # 79
When evaluating dipping and coating processes, flammable liquid vapors are usually.
- A. lighter than air, therefore, flow to high points.
- B. denser than air, therefore, flow to high points.
- C. denser than air, therefore, flow to low points.
- D. lighter than air, therefore, flow to low points.
正解：A
解説：
http://hamyarenergy.com/static/fckimages/files/NFPA/Hamyar%20Energy%20NFPA%2034%20-%202007.pdf
質問 # 80
The primary design approach to mitigate the effect of wind on smoke movement in high-rise buildings is based on
- A. outside temperature.
- B. fire department access.
- C. tightness of the building.
- D. height of the building.
正解：C
質問 # 81
Which of the following is a device constructed of a pair of wires of different metals or alloys welded together at a point to form a junction and calibrated to give the temperature in degree?
- A. Resistance thermometer
- B. Pyrometer
- C. Liquid expansion thermometer
- D. Thermocouple
正解：D
質問 # 82
Existing Board and Care Facilities classify the residents based on all of the following evacuation capabilities EXCEPT.
- A. Slow
- B. prompt
- C. impractical
- D. normal
正解：D
解説：
Evacuation Capability. The ability of occupants, residents, and staff as a group either to evacuate a building or to relocate from the point of occupancy to a point of safety.
Impractical Evacuation Capability. The inability of a group to reliably move to a point of safety in a timely manner.
Prompt Evacuation Capability. The ability of a group to move reliably to a point of safety in a timely manner that is equivalent to the capacity of a household in the general population.
Slow Evacuation Capability. The ability of a group to move reliably to a point of safety in a timely manner, but not as rapidly as members of a household in the general population.
質問 # 83
while not the only factor used to evaluate the hazard, which of the following is commonly accepted as the most important criterion of the relative hazard of flammable and combustible liquids?
- A. Flash point
- B. Flammable range
- C. Ignition temperature
- D. Rate of evaporation
正解：A
質問 # 84
What is one potential means for dispersing a chemical agent over a wide area?
- A. Crop-dusting aircraft
- B. Steam radiators
- C. Railway tank cars
- D. 55-gallon drums
正解：B
質問 # 85
The maximum discharge time permitted for halocarbon clean agent systems is
- A. 10 seconds.
- B. 30 seconds.
- C. 45 seconds.
- D. 60 seconds.
正解：A
解説：
Explanation
The maximum discharge time permitted for halocarbon clean agent systems is10 seconds. This is the requirement of NFPA 2001, which is the standard for clean agent fire extinguishing systems.NFPA 2001 states that the discharge time for halocarbon agents shall not exceed 10 seconds, unless otherwise permitted by the authority having jurisdiction1. Halocarbon agents are synthetic compounds that contain carbon, fluorine, and sometimes other elements, such as hydrogen, chlorine, or bromine.Examples of halocarbon agents include HFC-227ea, HFC-125, and FK-5-1-122. Halocarbon agents work by absorbing heat and interrupting the chemical chain reaction of the fire.They are electrically nonconductive and leave no residue upon evaporation3.Halocarbon agents are suitable for protecting Class A, B, and C fires involving electrical equipment, flammable liquids, and ordinary combustibles4. The discharge time is the time required to release the agent from the storage containers to the protected enclosure.A short discharge time is important to achieve the design concentration of the agent before the fire grows or spreads5.References:
NFPA 2001: Standard on Clean Agent Fire Extinguishing Systems
Clean Agent System Basics | NFPA
Fire Fighting Foams - Chemguard
Clean Agent Fire Suppression Systems | Fike
Category | Rotarex Firetec
質問 # 86
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