[2025] Pass NFPA CFPS Exam Updated 190 Questions
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NEW QUESTION # 27
What is the minimum pipe diameter size for direct discharge of steam inside a water tank?
- A. 1 in. (25 mm)
- B. 1 1/2 in. (38 mm)
- C. 2 in. (50 mm)
- D. 1/2 in. (13 mm)
Answer: C
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 # 28
The minimum width of a doorway in a means of egress to accommodate a person in a wheelchair is
- A. 32 inches (813 mm).
- B. 40 inches (1016 mm).
- C. 28 inches (711 mm).
- D. 36 inches (914 mm).
Answer: A
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 # 29
Which spacing multiplier is used for heat detectors installed in a building with a ceiling that is 15 ft (4.6 m) high?
- A. 0.58
- B. 0.77
- C. 0.71
- D. 0.64
Answer: B
NEW QUESTION # 30
Which chemical is classified as a pulmonary agent?
- A. Naptha
- B. Toluene
- C. Phosgene
- D. Anthracite
Answer: C
NEW QUESTION # 31
OSHA requires fire fighter training in hazardous materials, respiratory protection, and
- A. communicable diseases.
- B. live fire training.
- C. emergency medical services.
- D. emergency communications.
Answer: A
Explanation:
OSHA requires fire fighter training in hazardous materials, respiratory protection, and communicable diseases. According to OSHA standards, fire fighters must receive annual training in hazardous materials and infectious diseases, and initial and periodic training in respiratory protection. These topics are essential for fire fighters to protect themselves and others from exposure to harmful substances and pathogens.
NEW QUESTION # 32
When should fire fighters handle a potentially explosive device?
- A. When doing so will eliminate a threat to life
- B. At no time
- C. Only when the timer is visible and the bomb squad clearly will not arrive in time
- D. Only when the building cannot be evacuated easily
Answer: C
NEW QUESTION # 33
Clean agents were developed and commercialized in direct response to the phase out of which halon pertaining to the Montreal Protocol?
- A. 0
- B. 1101
- C. 1
- D. 2
Answer: B
NEW QUESTION # 34
What term refers to the use of gloves, masks, gowns, and eye protection to prevent exposure to a biological agent?
- A. Universal precautions
- B. Protective measures
- C. Universal protections
- D. Shielding
Answer: D
NEW QUESTION # 35
Fire pump overload point is defined as:
- A. 150 percent rated flow capacity at 100 percent rate total head.
- B. 100 percent rated flow capacity at 100 percent rate total head.
- C. 100 percent rated flow capacity at 65 percent rate total head.
- D. 150 percent rated flow capacity at 65 percent rate total head.
Answer: A
Explanation:
Fire pumps are required to produce specific flow rates (GPM) and pressures of 40 PSI or greater.
Further, the above-mentioned agencies advise that the pumps should produce at least 65% of that pressure at 150% of the rated flow -- and all the while operating at a 15 foot lift condition. The performance curves must be such that the shut-off head, or "churn," is from 101% to 140% of the rated head, depending upon the agency's definition of the term.
NEW QUESTION # 36
A fire reconstruction and failure process includes:
- A. conduction field testing of materials
- B. documenting only certain specific data
- C. completing reports within 72 hours
- D. identifying the location of fire origin
Answer: B
NEW QUESTION # 37
What gas is liberated when magnesium shavings or chips come in contact with water?
- A. Oxygen
- B. Hydrogen
- C. Acetylene
- D. Chlorine
Answer: B
NEW QUESTION # 38
Which type of radiation is the most harmful to the human body?
- A. Delta
- B. Gamma
- C. Beta
- D. Omega
Answer: A
NEW QUESTION # 39
The computer simu-lation egress model that is often referred to as the hydraulic model and also known as
- A. behavioral simulation model.
- B. egress model.
- C. single-parameter estimation model.
- D. movement model.
Answer: D
NEW QUESTION # 40
Sound meters used to test notification appliances in fire alarm systems shall comply with which standard?
- A. ANSI S1.42
- B. NFPA 70
- C. ANSI S12.13
- D. NFPA 72
Answer: A
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 # 41
On the Homeland Security color-code system, what is the color code for the lowest risk?
- A. Orange
- B. Yellow
- C. Red
- D. Green
Answer: B
NEW QUESTION # 42
Heat transfer oils can be used up to
- A. 750° F (399C).
- B. 600° F (315° C).
- C. 700° F (371° C).
- D. 650° F(343° C).
Answer: D
Explanation:
. 650° F(343° C).
Heat transfer oils are fluids that are used to transfer heat from one source to another in various industrial applications, such as chemical processing, oil refining, power generation, and food processing. Heat transfer oils can be classified into two types: mineral oils and synthetic oils. Mineral oils are derived from petroleum and have a lower cost and a lower flash point than synthetic oils. Synthetic oils are made from organic or silicone compounds and have a higher thermal stability and a higher flash point than mineral oils1 The maximum temperature that heat transfer oils can be used up to depends on the type and quality of the oil, as well as the design and operation of the heat transfer system. Different oils have different boiling points, viscosity, thermal conductivity, and thermal degradation rates. Generally, synthetic oils can withstand higher temperatures than mineral oils, but they are also more expensive and may require special handling and storage1 According to the web search results, the maximum temperature that heat transfer oils can be used up to ranges from 300°C to 400°C (572°F to 752°F), depending on the specific product and manufacturer. For example, the product brochure from Kluber Lubrication states that their heat transfer oils have an application range of operating temperatures up to 550°F (288°C) 2. The product data sheet from Sinopec states that their heat transfer oils can be used up to 540°F (282°C) 3. The product information from Paratherm states that their high temperature heat transfer fluids have service temperatures of 3°C to 357°C (37°F to 675°F) 4. Therefore, based on these sources, the closest answer to the question is B. 650 F(343 C). However, it is important to note that the maximum temperature that heat transfer oils can be used up to may vary depending on the specific conditions and requirements of each application.
Reference:
Heat Transfer Fluids - A Comparison of Types 1
High-temperature heat transfer fluids - Dow 5
Heat Transfer Oils - klueber.com 2
Heat Transfer Oil Suppliers | Heat Transfer Oils include low ... 3
High Temperature Heat Transfer Fluids | Paratherm 4
NEW QUESTION # 43
In an area used for sleeping, the minimum Sound Pressure Level (SPL) required of the fire alarm system is:
- A. 75 dBA
- B. 80 dBA
- C. 70 dBA
- D. 65 dBA
Answer: B
NEW QUESTION # 44
NFPA 25 requires initial testing of representative samples of fast response sprinklers after
- A. 50 years.
- B. 20 years.
- C. 5 years.
- D. 10 years.
Answer: B
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 Reference:
NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems 1 Sprinkler System Inspections, Testing, and Maintenance Frequencies Explained | NFPA 4 Sprinkler Testing on Quick Response Sprinklers: What You Need to Know 2 NFPA 25 ITM Quick Reference Guide - hillgrp.com 3
NEW QUESTION # 45
Which of the following is a characteristic of pyrophoric gases?
- A. They do not need a source of ignition to burn
- B. They have abnormally low flame temperature
- C. They do not need oxygen as a reducing agent
- D. They have high ignition temperatures
Answer: B
NEW QUESTION # 46
For standpipe systems containing 11/2 - 21/2 in. (40 - 65 mm) hose connection outlets without preconnected hose, a pressure regulating device is required when pressure exceeds
- A. 175 psi (1207 kPa).
- B. 125 psi (862 kPa).
- C. 100 psi (689 kPa).
- D. 150 psi (1034 kPa).
Answer: A
Explanation:
. 175 psi (1207 kPa).
For standpipe systems containing 11/2 - 21/2 in. (40 - 65 mm) hose connection outlets without preconnected hose, a pressure regulating device is required when the pressure exceeds 175 psi (1207 kPa), according to NFPA 14, Standard for the Installation of Standpipe and Hose Systems, 2019 edition. This requirement applies to Class I and Class III standpipe systems, which are intended for use by fire department personnel or trained occupants. A pressure regulating device is a device that automatically reduces and controls the pressure of the water flowing through the hose connection outlet to a predetermined value. This device helps to prevent excessive pressure that could damage the hose, nozzle, or fittings, or cause difficulty in handling the hose stream123 Reference:
NFPA 14: Standard for the Installation of Standpipe and Hose Systems 1
Standpipe System Design and Calculations | NFPA | NFPA 2
ENGINE COMPANY STANDPIPE OPERATIONS:PRESSURE-REGULATING DEVICES 3
NEW QUESTION # 47
What is another term for a joint command structure?
- A. Combined command
- B. Shared authority command
- C. Unified command
- D. Combined operating system
Answer: C
NEW QUESTION # 48
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