The Realest Study Materials CFPS Dumps Updated Apr 16, 2024
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NEW QUESTION # 12
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
Answer: D
NEW QUESTION # 13
Which type of construction consists of structural members of approved noncombustible or limited combustible materials with specified fire resistance ratings for exterior bearing walls of 3 or 4 hours?
- A. Type I
- B. Type IV
- C. Type II
- D. Type III
Answer: A
Explanation:
Explanation
The correct answer is A. Type I construction consists of structural members of approved noncombustible or limited combustible materials with specified fire resistance ratings for exterior bearing walls of 3 or 4 hours.
This is the highest level of fire resistance among the five types of construction defined by NFPA 220: Standard for Types of Building Construction.Type I construction is typically used for high-rise buildings made of concrete and protected steel12
NEW QUESTION # 14
The travel distance limit for a new unsprinklered educational occupancy is
- A. 150 ft. (45 m).
- B. 200 ft. (61 m).
- C. 250 ft. (76 m).
- D. 175 ft.(53 m).
Answer: D
Explanation:
Explanation
According to NFPA 101: Life Safety Code, 2018 Edition, the travel distance limit for a new unsprinklered educational occupancy is 175 ft. (53 m). This is the maximum distance that an occupant has to travel from any point within the building to reach an exit or exit access door. The travel distance limit for a new sprinklered educational occupancy is 250 ft. (76 m).These limits are based on the assumption that the building has at least two exits or exit access doors from each room or space12 References:
NFPA 101: Life Safety Code, 2018 Edition, Chapter 14
Deco DeD - I Dig Hardware
NEW QUESTION # 15
What is the maximum allowable travel distance from any part of a smoke compartment to the door in a smoke barrier in a new health care facility?
- A. 100 ft.(30 m).
- B. 150 ft. (46 m).
- C. 200 ft. (60 m).
- D. 50 ft. (15 m).
Answer: C
Explanation:
Explanation
The maximum allowable travel distance from any part of a smoke compartment to the door in a smoke barrier in a new health care facility is 200 ft. (60 m). This is based on NFPA 101: Life Safety Code, 2018 Edition, Chapter 18, Section 18.3.7.3, which states that "the travel distance from any point in a smoke compartment to reach a door in the required smoke barrier shall not exceed 200 ft (61 m)." A smoke compartment is a space within a building that is enclosed by smoke barriers on all sides, including the top and bottom. A smoke barrier is a continuous membrane, or a combination of materials, that is designed to restrict the movement of smoke.A smoke barrier door is a door assembly that is installed in a smoke barrier to allow access between smoke compartments123
NEW QUESTION # 16
Which pure metal in its solid form in oxygen has the highest ignition temperature in degrees Fahrenheit?
- A. Titanium
- B. Potassium
- C. Aluminum
- D. Zirconium
Answer: A
Explanation:
Explanation
According to the web search results, titanium is the pure metal in its solid form in oxygen that has the highest ignition temperature in degrees Fahrenheit.The spontaneous-ignition temperature of titanium in the solid phase (below melting) is about 3020°F (1660°C)1.Aluminum, potassium, and zirconium have lower ignition temperatures in the solid phase, ranging from 1292°F (700°C) to 1652°F (900°C)23.References:
IGNITION OF METALS IN HIGH PRESSURE OXYGEN2
Combustion of Metals in Oxygen-Enriched Atmospheres3
High-temperature oxidation and ignition of metals1
NEW QUESTION # 17
Zebra mussel pipe obstructions are largely concentrated around the Great Lakes and
- A. Mississippi River areas.
- B. Salt Lake areas.
- C. Lake Mead areas.
- D. Colorado River areas.
Answer: A
Explanation:
Explanation
Zebra mussel
Explore
The correct answer is B. Zebra mussel pipe obstructions are largely concentrated around the Great Lakes and Mississippi River areas. Zebra mussels are an invasive species that originated from Eurasia and were introduced to North America in the late 1980s through the ballast water of ships. They have since spread to many freshwater lakes and rivers, especially in the Midwest and Northeast regions of the United States and Canada. Zebra mussels can attach themselves to hard surfaces, such as pipes, pumps, valves, and filters, and form dense colonies that reduce or block the water flow. This can cause serious problems for industries, utilities, and municipalities that rely on water intake or delivery systems.Zebra mussels can also damage aquatic ecosystems, infrastructure, and recreation by competing with native species, altering water quality, and fouling boats and equipment12345
NEW QUESTION # 18
Which type of heat detector automatically resets after operation, when the ambient temperature drops below the operating temperature?
- A. Rate-of-Rise
- B. Electronic spot-type
- C. lonization
- D. Rate compensation
Answer: A
NEW QUESTION # 19
Wet chemical extinguishing agents when sprayed on a grease fire, extinguish the fire by
- A. Removal of the radical free agent
- B. Removal of the fuel
- C. Radiation shielding
- D. Smothering and cooling
Answer: D
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 # 20
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: A
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 # 21
The Safety Class for propane refrigerant R-290 is
- A. A3
- B. B1.
- C. A2
- D. B2
Answer: A
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 # 22
Dipping and coating processes should be separated from other operations, materials, or occupancies by location, fire walls, or
- A. operational procedures.
- B. fire partitions.
- C. exhaust systems
- D. process systems.
Answer: A
Explanation:
Explanation
Dipping and coating processes using flammable or combustible liquids pose a significant fire and explosion hazard and should be isolated from other operations, materials, or occupancies by location, fire walls, or operational procedures. Location refers to the physical separation of the process from other areas by distance or barriers. Fire walls are fire-resistance-rated assemblies that prevent the spread of fire from one side to the other. Operational procedures are rules or guidelines that regulate the conduct of the process and its personnel, such as limiting the amount of flammable or combustible liquids in use, controlling ignition sources, and providing adequate ventilation.
References: NFPA 34: Standard for Dipping, Coating, and Printing Processes Using Flammable or Combustible Liquids, 2021 Edition, Section 4.21; Fire Protection Handbook, 20th Edition, Volume 1, Chapter
8, Section 8.3.12.
1:NFPA 34: Standard for Dipping, Coating, and Printing Processes Using Flammable or Combustible Liquids2:Fire Protection Handbook, 20th Edition, Volume 1, Chapter 8
NEW QUESTION # 23
For engine driven emergency power supplies, which of the following devices maintains a relatively constant speed of the prime mover throughout the full power output range by varying the fuel input to the prime mover?
- A. Governor
- B. Alternator
- C. Generator
- D. Distributor
Answer: A
Explanation:
Explanation
Governor
For engine driven emergency power supplies, the device that maintains a relatively constant speed of the prime mover throughout the full power output range by varying the fuel input to the prime mover is the governor. A governor is a device that automatically regulates the speed or power of an engine or other prime mover by adjusting the amount of fuel supplied to it. A governor senses the speed of the prime mover and compares it with a desired set point, and then controls the fuel valve to increase or decrease the fuel flow accordingly.By doing so, the governor ensures that the prime mover operates within a narrow range of speed or power, regardless of the load or other factors that may affect its performance12
NEW QUESTION # 24
What is the occupancy factor used by the Insurance Services Office (ISO) for computing required fire flow for C-3 (Combustible)?
- A. 1.00
- B. 1.15
- C. 0.85
- D. 0.75
Answer: A
NEW QUESTION # 25
Sound meters used to test notification appliances in fire alarm systems shall comply with which standard?
- A. ANSI S12.13
- B. ANSI S1.42
- C. NFPA 72
- D. NFPA 70
Answer: B
Explanation:
Explanation
ANSI S1.4a
Sound meters used to test notification appliances in fire alarm systems shall comply with the standard ANSI S1.4a, Specifications for Sound Level Meters, Type 2 requirements, according to NFPA 72 2010, the National Fire Alarm and Signaling Code.This standard specifies the performance and accuracy criteria for sound level meters that are used to measure the sound pressure levels of audible signals in fire alarm systems1
NEW QUESTION # 26
NFPA 25 requires initial testing of representative samples of fast response sprinklers after
- A. 5 years.
- B. 20 years.
- C. 10 years.
- D. 50 years.
Answer: B
Explanation:
Explanation
20 years.
According to NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2020 edition, fast response sprinklers are those that have a response time index (RTI) of 50 (m s)^(1/2) or less.These sprinklers are designed to activate faster than standard response sprinklers in the event of a fire, and they are typically used in light hazard, ordinary hazard, and residential occupancies1 NFPA 25 requires initial testing of representative samples of fast response sprinklers after 20 years from the date of manufacture, and subsequent testing every 10 years thereafter. The testing involves removing a minimum of four sprinklers or 1% of the total number of sprinklers per individual sprinkler sample, whichever is greater, and sending them to a recognized testing laboratory. The laboratory will perform a plunge test, which measures the time it takes for the sprinkler to operate when exposed to a specified air temperature.The test results will indicate whether the sprinklers meet the acceptance criteria or need to be replaced123 References:
NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems1 Sprinkler System Inspections, Testing, and Maintenance Frequencies Explained | NFPA4 Sprinkler Testing on Quick Response Sprinklers: What You Need to Know2 NFPA 25 ITM Quick Reference Guide - hillgrp.com3
NEW QUESTION # 27
What are the two classes of fire models?
- A. Open and closed
- B. Physical and mathematical
- C. Behavioral and theoretical
- D. Field and laboratory
Answer: B
Explanation:
Explanation
The two classes of fire models arephysical and mathematical. Physical fire models are scaled-down representations of real fire scenarios, using laboratory experiments and measurements to study the fire behavior and effects.Physical fire models can be used to test hypotheses, validate mathematical models, and provide empirical data for fire analysis1. Mathematical fire models are numerical or analytical solutions of the equations that govern the fire phenomena, such as heat transfer, fluid dynamics, combustion, and chemical kinetics.Mathematical fire models can be used to simulate fire scenarios, predict fire outcomes, and optimize fire protection systems2. There are two major categories of mathematical fire models: zone models and field models. Zone models divide the fire compartment into two or more homogeneous zones, such as upper and lower layers, and apply mass and energy conservation equations to each zone.Zone models are relatively simple, fast, and easy to use, but they have limitations in accuracy and applicability3. Field models solve the partial differential equations that describe the fire-driven fluid flow and heat transfer in three dimensions, using computational fluid dynamics (CFD) techniques.Field models are more detailed, realistic, and flexible, but they require more computational resources and expertise4.References:
Fire modelling with Computational Fluid Dynamics - BRE Group
Fire modeling programs | NIST
interFIRE, A site dedicated to improving fire investigation worldwide.
Computer Fire Models for Fire Investigation and Reconstruction
NEW QUESTION # 28
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