Oct-2025 Realistic CFPS Exam Dumps with Accurate & Updated Questions
CFPS Exam Dumps - PDF Questions and Testing Engine
NEW QUESTION # 59
What is the minimum pipe diameter size for direct discharge of steam inside a water tank?
- A. 2 in. (50 mm)
- B. 1 1/2 in. (38 mm)
- C. 1/2 in. (13 mm)
- D. 1 in. (25 mm)
Answer: A
Explanation:
The minimum pipe diameter size for direct discharge of steam inside a water tank is 2 in. (50 mm), according to NFPA 13, Standard for the Installation of Sprinkler Systems. This is to prevent water hammer, noise, and vibration caused by the rapid condensation of steam when it contacts the water. The pipe should also be equipped with a check valve to prevent backflow of water into the steam source. Reference: NFPA 13, Standard for the Installation of Sprinkler Systems, 2023 Edition, Chapter 8, Section 8.16.4.5.3; NFPA Fire Protection Handbook, 21st Edition, Chapter 14, Section 14.3.4.2.
NEW QUESTION # 60
The most import step a grain or milling operation can take to minimize a fire or explosion is______.
- A. Eliminate static electricity
- B. Use wet methods for housekeeping
- C. Perform blowdowns of horizontal surfaces
- D. Perform a dust hazard analysis
Answer: D
NEW QUESTION # 61
How many anthrax spores are needed to cause an anthrax infection?
- A. 1 to 10
- B. 8000 to 10,000
- C. 100 to 1000
- D. 2000 to 4000
Answer: B
NEW QUESTION # 62
The Safety Class for propane refrigerant R-290 is
- A. B2
- B. A2
- C. B1.
- D. A3
Answer: D
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 # 63
What oven class utilizes a special processing atmosphere to prevent the oxidation of the metal during the heating process?
- A. Class B
- B. Cass D
- C. Class A
- D. Class C
Answer: C
Explanation:
Class A ovens and furnaces are heat utilization equipment operating at approximately atmospheric pressure wherein there is a potential explosion or fire hazard that could be occasioned by the presence of flammable volatiles or combustible materials processed or heated in the furnace. Such flammable volatiles or combustible materials can, for instance, originate from any one of the following:
(a) Paints, powders, inks, and adhesives from finishing processes, such as dipped, coated, sprayed, and impregnated Materials (b) Substrate material.
(c) Wood, paper, and plastic pallets, spacers, or packaging materials
(d) Polymerization or other molecular rearrangements Potentially flammable materials, such as quench oil, water-borne finishes, cooling oil, or cooking oils, that present a hazard are ventilated according to Class A standards.
Class B ovens and furnaces are heat utilization equipment operating at approximately atmospheric pressure wherein there are no flammable volatiles or combustible materials being heated.
Class C ovens and furnaces are those in which there is a potential hazard due to a flammable or other special atmosphere being used for treatment of material in process. This type of furnace can use any type of heating system and includes a special atmosphere supply system(s). Also included in the Class C classification are integral quench furnaces and molten salt bath furnaces.
Class D furnaces are vacuum furnaces that operate at temperatures that exceed ambient to over
5000 XF (2760 XC) and at
pressures from vacuum to several atmospheres during heating using any type of heating system. These furnaces can include the use of special processing atmospheres. During gas quenching, these furnaces may operate at pressures from below atmospheric to over a gauge pressure of 100 psi (690 kPag).
NEW QUESTION # 64
In the field of Fire and Lite Safely Education, which type of message is designed to persuade the receiver to behave in a certain way?
- A. Information message
- B. Behavioral message
- C. Reactional message
- D. Awareness message
Answer: B
NEW QUESTION # 65
How often should an electric fire pump be inspected and tested, and for how long should it run during testing?
- A. Inspected and tested weekly, run for 30 minutes
- B. Inspected and tested monthly, run for 10 minutes
- C. Inspected and tested weekly, run for 10 minutes
- D. Inspected and testes monthly, run for 30 minutes
Answer: D
NEW QUESTION # 66
Picker trunk automatic sprinklers are used:
- A. When fed by the domestic system
- B. To reduce collections of lint and fiber on the head
- C. In areas subject to freezing
- D. For limited area sprinkler operations
Answer: B
Explanation:
Automatic sprinklers from which the valve cap and heat-responsive elements have been omitted are used in deluge sprinkler systems where the water supply is controlled by an automatic water control valve actuated independently of the automatic sprinklers. The water distribution pattern and the density of the discharge are designed to be appropriate for the hazard to be protected.
NEW QUESTION # 67
Critical Radiant Flux is used to classify
- A. exterior materials.
- B. roofing materials.
- C. interior wall finishes.
- D. interior floor finishes.
Answer: D
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 # 68
At what temperature do cellulose nitrate products begin to decompose?
- A. 425° F (218° C)
- B. 581° F (305° C)
- C. 300° F (150° C)
- D. 350° F (177° C)
Answer: C
Explanation:
Cellulose nitrate products begin to decompose at about 300 °F (150 °C). This is the temperature at which the nitrate ester bonds start to break down and release nitric acid, which further catalyzes the decomposition. The decomposition temperature depends on the nitrogen content, the stabilizers, and the external heating rate of the cellulose nitrate. Higher nitrogen content, lower stabilizer concentration, and faster heating rate lower the decomposition temperature and increase the risk of thermal runaway.
NEW QUESTION # 69
The maximum distance between hangers for an automatic fire sprinkler system for a threaded lightwall steel pipe of 2 in. diameter is
- A. 12 ft.
- B. 10 ft.
- C. 15 ft.
- D. 8 ft.
Answer: B
Explanation:
Explanation
According to NFPA 13, Table 17.4.2.1 (a), the maximum distance between hangers for an automatic fire sprinkler system for a threaded lightwall steel pipe of 2 in. diameter is 10 ft. This is done to ensure that there are not long stretches of unsecured piping that could sag, leak, or break. The distance between hangers may vary depending on the type of pipe, the type of hanger, and the seismic design category of the building.References:NFPA 13, Table 17.4.2.1 (a);Hangers and Support of Sprinkler System Piping | NFPA | NFPA.
NEW QUESTION # 70
Attacks on agriculture or the food supply are examples of:
- A. agroterrorism.
- B. cyberterrorism.
- C. international terrorism.
- D. ecoterrorism.
Answer: A
NEW QUESTION # 71
What acronym is used to remember the symptoms of nerve agent exposure?
- A. CRAMPS NH
- B. NEWS
- C. SLUDGE
- D. BARKSEAL
Answer: C
NEW QUESTION # 72
Power for driving fire pumps is selected on the basis of reliability, adequacy, economy, and
- A. adaptability.
- B. ecology.
- C. safety.
- D. efficiency.
Answer: C
Explanation:
Explanation
Fire pump
Explore
The correct answer is B.Safety is one of the criteria for selecting the power source for driving fire pumps, according to NFPA 20, Chapter 9.1.1.11. Reliability, adequacy, and economy are the other criteria mentioned in the same chapter. Efficiency, adaptability, and ecology are not explicitly stated as criteria in NFPA 20, although they may be considered as secondary factors in some cases.
1:Pump Installation: Everything About Electric and Diesel Driven Fire ...
NEW QUESTION # 73
In the plastics industry, which one of the following is NOT one of the four broad areas of processing?
- A. Conversion
- B. Polymerization
- C. Manufacturing
- D. Finishing
Answer: C
Explanation:
In the plastics industry, the four broad areas of processing are polymerization, conversion, finishing, and recycling1. Polymerization is the process of creating plastic resins from monomers or pre-polymers, using chemical reactions such as addition, condensation, or ring-opening2. Conversion is the process of transforming plastic resins into plastic products, using various methods such as injection molding, blow molding, extrusion, rotational molding, and thermoforming3. Finishing is the process of adding value to plastic products, such as coating, printing, welding, or assembling4. Recycling is the process of recovering plastic waste and converting it into new plastic products or raw materials, using mechanical, chemical, or biological methods5. Therefore, manufacturing is not one of the four broad areas of processing in the plastics industry, as it is a general term that encompasses all the stages of producing plastic products from raw materials. Reference:
Plastics Manufacturing: Types of Plastic and Processes - Deskera
Plastics industry - Wikipedia
Methods of Processing Plastic - Plastics Industry
Plastic recycling - Wikipedia
Polymerization - an overview | ScienceDirect Topics
NEW QUESTION # 74
What dry chemical agent is called multipurpose because it can be effective on Class A, B, C fires?
- A. Potassium chloride
- B. Sodium bicarbonate
- C. Potassium bicarbonate
- D. Monoammonium phosphate
Answer: D
Explanation:
Multi-Purpose Dry Chemical (A, B, C)
A dry chemical agent called mono ammonium phosphate. The chemical is non-conductive and can be mildly corrosive if moisture is present. In order to avoid corrosion, it is necessary to scrub and thoroughly cleanup the contacted area once the fire is out. A dry chemical fire extinguisher is usually used in schools, general offices, hospitals, homes, etc.
Regular Dry Chemical (B, C)
A dry chemical agent called sodium bicarbonate. It is non-toxic, non-conductive and non-corrosive. It is easy to cleanup, requiring only vacuuming, sweeping or flushing with water. Extinguishers with sodium bicarbonate are usually used in residential kitchens, laboratories, garages, etc.
Carbon Dioxide (B, C)
Carbon dioxide removes oxygen to stop a fire but has limited range. It is environmentally friendly and leaves no residue, so cleanup is unnecessary. Extinguishers with carbon dioxide are usually used in contaminationsensitive places such as computer rooms, labs, food storage areas, processing plants, etc.
Halotron (A, B, C)
A vaporizing liquid that is ozone friendly and leaves no residue. Because it requires no cleanup, fire extinguishers with halotron are ideal for computer rooms, telecommunication areas, theaters, etc.
Foam (A, B)
Foam floats on flammable liquids to tame the fire and helps prevent reflashes. To cleanup the affected area, it must be washed away and left to evaporate. Fire extinguishers with foam are usually used in garages, homes, vehicles, workshops, etc.
Purple K Dry Chemical (B, C)
A dry chemical called potassium bicarbonate. It is non-conductive and non-corrosive. Clean up requires vacuuming, sweeping or flushing with water. Extinguishers with potassium bicarbonate are usually used in military facilities, oil companies, vehicles, etc.
Water (A)
The most common agent is water; however, it cannot be used for class B or C fires because it is conductive. Waterbased fire extinguishers are usually used in stockrooms, schools, offices, etc.
NEW QUESTION # 75
The goals of the first edition of NFPA 13D were to provide sufficient time for safe egress or rescue, economic viability, and
- A. prevent flashover.
- B. limit water damage.
- C. limit damage to the dwelling.
- D. alert the fire department.
Answer: C
Explanation:
Explanation
According to the web search results, the goals of the first edition of NFPA 13D were to provide sufficient time for safe egress or rescue, economic viability, and limit damage to the dwelling. The first edition of NFPA 13D was published in 1975 and was based on the concept of a "life safety" sprinkler system that was intended to protect the occupants of one- and two-family dwellings and manufactured homes from fire.The first edition of NFPA 13D stated that the system was not designed to protect the property or contents from fire damage, but rather to provide a tenable environment for escape or rescue1.The first edition of NFPA 13D also recognized the need for economic viability of the system, and therefore allowed for reduced water supply and piping requirements compared to other sprinkler standards2.The first edition of NFPA 13D did not explicitly state the goal of limiting damage to the dwelling, but it implied that the system would have some beneficial effect on the fire spread and severity by stating that the system was designed to prevent flashover in the room of fire origin1.References:
NFPA 13D: Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 1975 Edition, Section 1-11 Fire Protection Handbook, 20th Edition, Volume 1, Chapter 8, Section 8.2.1.22
NEW QUESTION # 76
Which type of plan review may provide information about a modification such as the removal of an abandoned underground flammable liquid tank?
- A. Preliminary building plan review
- B. As built plan review
- C. Site plan review
- D. Final building plan review
Answer: B
Explanation:
An as built plan review is a type of plan review that may provide information about a modification such as the removal of an abandoned underground flammable liquid tank. An as built plan review is conducted after the construction or alteration of a building or system is completed and before the final approval or acceptance by the AHJ. An as built plan review verifies that the building or system conforms to the approved plans and specifications and complies with the applicable codes and standards. An as built plan review may also identify any changes or deviations from the original plans that occurred during the construction or alteration process, such as the removal of an underground tank. Reference:
NFPA 1: Fire Code, 2018 Edition, Section 1.12.8.1.1 1
Fire Protection Handbook, 20th Edition, Volume 1, Chapter 5, Section 5.2.3.4 2
NEW QUESTION # 77
How would you define an emergency involving the release or potential release of hazardouse materials/WMD with or without fire?
- A. Response community
- B. Hazardous materials incident
- C. Bulk packaging response
- D. Outcome
Answer: B
NEW QUESTION # 78
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