[May 07, 2025] CWBSP Exam Dumps 100% Same Q&A In Your Real Exam
CWBSP Test Engine Dumps Training With 100 Questions
NEW QUESTION # 19
What is the hose stream allowance and duration for rolled paper storage protected using ESFR sprinklers?
- A. 250 gpm (950 L/min) for 180 minutes
- B. 500 gpm (1900 L/min) for 180 minutes
- C. 250 gpm (950 L/min) for 60 minutes
- D. 500 gpm (1900 L/min) for 120 minutes
Answer: D
Explanation:
ESFR (Early Suppression, Fast Response) sprinklers are designed for high-challenge fire hazards like rolled paper storage. The hose stream allowance for such systems is typically higher to account for the potential need for manual firefighting assistance. 500 gpm for 120 minutes provides a substantial water supply for this purpose.
References: Based on NFPA 13's guidelines for storage and ESFR sprinkler systems.
NEW QUESTION # 20
How much pressure is lost due to elevation in water flowing in a pipe from 6 ft (1.8 m) high to 15 ft (4.6 m) high?
- A. 3.897 psi (2.6850 bar)
- B. 3.6 psi (2.4804 bar)
- C. 4.5 psi (3.1005 bar)
- D. 4.050 psi (2.6850 bar)
Answer: A
Explanation:
The pressure lost due to elevation in water flowing from 6 ft to 15 ft high is approximately 3.897 psi, calculated based on the height difference and the principle that each foot of elevation change results in a pressure change of 0.433 psi.
References: Basic hydraulic principles applicable in fire protection engineering, which include calculating the impact of elevation changes on water pressure in a piping system.
NEW QUESTION # 21
When backflow prevention valves are installed on existing pipe scheduled systems, the friction losses of the device shall be accounted for when determining
- A. system GPM requirements.
- B. residual pressure.
- C. system flow requirements.
- D. static pressure.
Answer: B
Explanation:
When backflow prevention devices are added to a system, their associated friction losses can affect the residual pressure available for the sprinkler system operation. Therefore, it's important to account for these losses to ensure the system maintains the required pressure during operation.
References: NFPA 13 includes considerations for the installation of backflow preventers and their impact on system design, emphasizing the need to account for device-related friction losses to maintain adequate residual pressure in the sprinkler system.
NEW QUESTION # 22
An NFPA 13 fire sprinkler system requires listing of a main control valve and
- A. a gauge.
- B. a flow switch.
- C. a drain valve.
- D. an air compressor.
Answer: B
Explanation:
In an NFPA 13 fire sprinkler system, a main control valve must be listed, and a flow switch is also required to monitor water movement in the system, signaling activation of the sprinklers. The flow switch is a critical component for system monitoring and alerting.
References: NFPA 13 requirements for the installation and components of fire sprinkler systems, emphasizing the importance of listed equipment and system monitoring devices.
NEW QUESTION # 23
Working plans are required to have the total system volume of the system for
- A. open-head deluge systems.
- B. wet systems.
- C. antifreeze systems.
- D. dry systems.
Answer: D
Explanation:
Working plans for dry systems are required to include the total system volume, as this informationis critical for determining the amount of air or nitrogen needed to pressurize the system and for calculating the time to water delivery. This requirement helps ensure the system's effective operation and quick response in the event of a fire.
References: NFPA 13 requirements for the documentation and planning of sprinkler systems, emphasizing the importance of detailed system information for dry configurations.
NEW QUESTION # 24
Which of the following should be considered when choosing an occupancy?
- A. Ceiling height to underside of structural members
- B. Access to egress
- C. Susceptibility for change in fuel characteristics
- D. Size of space
Answer: C
Explanation:
When choosing an occupancy classification, susceptibility for change in fuel characteristics is a crucial factor.
This considers the potential for the stored or used materials in the space to change in a way that might affect the fire risk or required protection level.
References: NFPA 13 categorizes occupancies based on factors such as the type and combustibility of contents, which directly influence the fire protection strategy.
NEW QUESTION # 25
What is the maximum allowable water delivery time for a dry pipe system protecting an Ordinary Hazard Group II occupancy?
- A. 60 seconds
- B. 40 seconds
- C. 45 seconds
- D. 50 seconds
Answer: D
Explanation:
The maximum allowable water delivery time for a dry pipe system protecting an Ordinary Hazard Group II occupancy is addressed under numeral 8.2.3.6
NEW QUESTION # 26
An 8 in. (200 mm) Schedule 40 steel main is to be supported from a trapeze hanger. The trapeze hanger is to span between two joists which are 7.5 ft (2.3 m) apart. What is the minimum size of steel pipe the trapeze member is to be made of?
- A. 2.5 in. (65 mm) Schedule 10 steel pipe
- B. 3 in. (80 mm) Schedule 40 steel pipe
- C. 3 in. (80 mm) Schedule 10 steel pipe
- D. 2.5 in. (65 mm) Schedule 40 steel pipe
Answer: B
Explanation:
For an 8 in. Schedule 40 steel main supported from a trapeze hanger with a 7.5 ft span, a 3 in. Schedule 40 steel pipe for the trapeze member provides sufficient strength and support for the weight of the main and the water it contains.
References: General engineering practices for supporting piping systems, which include selecting hanger sizes based on the span and load, ensuring stability and safety.
NEW QUESTION # 27
When used for sprinkler system design, the water flow test shall be conducted no more than how many months prior to work plan submittal?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Water flow tests for sprinkler system design should be conducted no more than 12 months prior to work plan submittal to ensure the test data accurately reflects current water supply conditions.
References: NFPA 13 requirements for water supply testing, ensuring that sprinkler system designs are based on up-to-date and accurate water supply information.
NEW QUESTION # 28
Contract specifications call for a water mist fire protection system in the mechanical room. Is this allowed per NFPA 13?
- A. No, water mist systems are covered by NFPA 750.
- B. Yes, NFPA 13 allows water mist systems in some areas.
- C. Yes, if the available water pressure is high enough.
- D. No, water mist systems are covered in NFPA 705.
Answer: A
Explanation:
Water mist fire protection systems are specifically covered by NFPA 750, not NFPA 13, which focuses on traditional water-based sprinkler systems. NFPA 750 provides the standards for water mist fire protection systems, including their design, installation, and maintenance.
References: Distinctions between NFPA standards, where NFPA 13 covers traditional sprinkler systems and NFPA 750 addresses water mist systems.
NEW QUESTION # 29
A 4 in. (102 mm) nominal diameter Schedule 10 sprinkler main is to be supported from the structure utilizing a trapeze hanger with a span of 8 ft (2.4 m). Using Schedule 40 pipe for the trapeze hanger, what is the minimum diameter pipe that should be used?
- A. 2.5 in. (65 mm)
- B. 1.5 in. (40 mm)
- C. 2 in. (50 mm)
- D. 3 in. (75 mm)
Answer: C
Explanation:
For supporting a 4 in. Schedule 10 sprinkler main with a trapeze hanger spanning 8 ft, a Schedule 40 pipe of at least 2 in. in diameter is typically recommended. This size provides adequate strength for the span and weight of the sprinkler main.
References: Engineering principles and best practices for hanger selection and sizing in sprinkler system installations.
NEW QUESTION # 30
Which Occupancy Classification is a machine shop considered?
- A. Ordinary Hazard Group 1
- B. Light Hazard
- C. Ordinary Hazard Group 2
- D. Extra Hazard Group 1
Answer: A
Explanation:
A machine shop is typically considered an Ordinary Hazard Group 1 occupancy due to the moderate level of fire load, including the presence of combustible materials, machinery, and processes that produce sparks or hot metal. This classification guides the design and installation of sprinkler systems to address the specific fire risks associated with such environments.
References: NFPA 13's occupancy hazard classifications, which help determine the appropriate sprinkler system design criteria based on the expected fire load and combustibility of materials present.
NEW QUESTION # 31
After reviewing an existing sprinkler system, it was determined that sprinklers were installed using NFPA 13 using the Ordinary Hazard Pipe Schedule method. The highest elevation of sprinklers is 28 ft (8.53m) and the system is fully monitored as specified by NFPA 13. What is the minimum pressure and flow required?
- A. 850 gpm at 27 psi (3,200 L/min at 1.86 bar)
- B. 500 gpm at 32 psi (1,900 L/min at 2.2 bar)
- C. 500 gpm at 27 psi (1,900 L/min at 1.86 bar)
- D. 850 gpm at 32 psi (3,200 L/min at 2.2 bar)
Answer: C
Explanation:
For a system using the Ordinary Hazard Pipe Schedule method, the minimum pressure and flow required are typically based on the system's design criteria, which for a system fully monitored as specified by NFPA 13 and with the highest elevation of sprinklers at 28 ft, would be around 500 gpm at 27 psi.
References: NFPA 13 includes guidelines for calculating system demand using the pipe schedule method, taking into account factors such as system elevation and monitoring.
NEW QUESTION # 32
An existing building with an existing sprinkler system is constructed with 26 in. (660 mm) beams framed into girders spaced on 7 ft (2.1 m) centers. What is the maximum distance permitted below the ceiling or roof deck if standard upright sprinklers are positioned in the center of each section?
- A. 12 in. (300 mm)
- B. 1 in. (25 mm)
- C. 22 in. (560 mm)
- D. 6 in. (150 mm)
Answer: A
Explanation:
When using standard upright sprinklers with beams framed into girders spaced on 7 ft centers, a maximum distance of 12 in. below the ceiling or roof deck is typically permitted. This ensures the sprinklers maintain effective coverage while accommodating architectural features.
References: NFPA 13 installation standards for upright sprinklers in relation to ceiling obstructions and beam configurations.
NEW QUESTION # 33
A paddle-type water flow alarm indicator shall be installed only in
- A. deluge systems.
- B. pre-action systems.
- C. wet systems.
- D. dry systems.
Answer: C
Explanation:
16.11.3.4* Paddle-Type Waterflow Devices
Paddle-type water-flow alarm indicators shall be installed in wet systems only.
https://up.codes/s/system-attachments
NEW QUESTION # 34
For an Ordinary Hazard with a design area of 1,500 ft2 (140 m2), what is the minimum number of standard pendent sprinklers required?
- A. 12 sprinklers
- B. 20 sprinklers
- C. 18 sprinklers
- D. 14 sprinklers
Answer: A
Explanation:
https://www.nfpa.org/news-blogs-and-articles/blogs/2023/01/30/basics-of-fire-sprinkler-calculations-part-1
NEW QUESTION # 35
What is the minimum calculated design area for a light hazard sprinkler system protecting an open office space with a noncombustible acoustic ceiling tile installed 6 in. (150 mm) below the bottom of solid wood joists?
- A. 1,500 ft2 (139.35 m2)
- B. 1,950 ft2 (181.1 m2)
- C. 900 ft2 (83.6 m2)
- D. 3,000 ft2 (278.7 m2)
Answer: A
Explanation:
For a light hazard occupancy like an open office space with a noncombustible ceiling, NFPA 13 typically requires a minimum calculated design area of 1,500 ft². This accounts for the lower fireload and the effective coverage of sprinklers in such environments.
References: NFPA 13 design criteria for light hazard occupancies, which specify the minimum design areas for sprinkler systems based on occupancy type and ceiling configuration.
NEW QUESTION # 36
Assuming that the sprinkler is listed for such use, what is the maximum deflector distance for standard spray horizontal sidewall sprinklers from the ceiling under non- and limited-combustible ceilings?
- A. 12 in. (300 mm)
- B. 18 in. (450 mm)
- C. 4 in. (100 mm)
- D. 6 in. (150 mm)
Answer: A
Explanation:
Assuming the sprinkler is listed for such use, the maximum deflector distance for standard spray horizontal sidewall sprinklers from the ceiling under non- and limited-combustible ceilings is typically 12 inches (300 mm). This ensures proper water distribution and coverage.
References: NFPA 13 provides installation criteria for sidewall sprinklers, including deflectorpositioning relative to the ceiling to ensure effective performance.
NEW QUESTION # 37
The minimum design criteria for the design of a new sprinkler system in a residential occupancy, with noncombustible concealed spaces, in an NFPA 13 based design is how many residential sprinklers and what density?
- A. 4 sprinklers at 0.10 gpm/ft2 (4.1 mm/min)
- B. 8 sprinklers at 0.10 gpm/ft2 (4.1 mm/min)
- C. 2 sprinklers at 0.05 gpm/ft2 (2.0 mm/min)
- D. 3 sprinklers at 0.05 gpm/ft2 (2.0 mm/min)
Answer: A
Explanation:
The minimum design criteria for a new sprinkler system in a residential occupancy, considering noncombustible concealed spaces and based on NFPA 13, would typically involve 4 sprinklers at a density of
0.10 gpm/ft². This provides a baseline level of fire protection suitable for residential settings.
References: NFPA 13 provides design criteria for sprinkler systems in various occupancies, including residential, with specific guidelines for sprinkler quantity and density.
NEW QUESTION # 38
What is the minimum design criteria to protect an exposed nonexpanded Group A plastic stored in a solid pile to a maximum height of 15 ft (4.6 m) in a 26 ft (7.9 m) high building? Piles to be stable with closed arrays.
- A. 0.70 gpm/ft2 over 2000 ft2 (28.5 mm/min over 186 m2)
- B. 0.85 gpm/ft2 over 2500 ft2 (34.6 mm/min over 232 m2)
- C. 0.85 gpm/ft2 over 2000 ft2 (34.6 mm/min over 186 m2)
- D. 0.70 gpm/ft2 over 2500 ft2 (28.5 mm/min over 232 m2)
Answer: A
Explanation:
To protect exposed nonexpanded Group A plastic stored in a solid pile up to 15 ft high, a design criteria of
0.70 gpm/ft² over 2000 ft² is typically required. This density and area coverage account for the high combustibility and potential heat release of Group A plastics.
References: NFPA 13's guidelines for storage of combustible commodities, which include specific design criteria for plastics based on their combustibility and storage configuration.
NEW QUESTION # 39
How many sprinklers in a townhome style residential occupancy protected in accordance with NFPA 13D with
24 ft (7.3 m) flat, smooth, and horizontal ceilings, with no beams, are required to be calculated for?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
In residential occupancies like townhomes protected under NFPA 13D, the design often includes the calculation of sprinkler coverage based on specific design areas and spacing rules. For a typical room layout, especially with flat and smooth ceilings, at least 2 sprinklers might be required to be calculated to ensure adequate coverage, considering possible obstructions and the layout of living spaces.
References: NFPA 13D guidelines for the installation of sprinkler systems in residential occupancies, including townhomes.
NEW QUESTION # 40
When using a 1.5 in. (40 mm) outlet on a hose connection, an approved pressure-regulating device shall be installed when the residual pressure exceeds what value?
- A. 300 pei (20.7 bar)
- B. 250 psi (17.2 bar)
- C. 100 psi (6.9 bar)
- D. 175 psi (12.1 bar)
Answer: C
Explanation:
When the residual pressure at a 1.5 in. hose connection exceeds 100 psi, an approved pressure-regulating device is typically required to ensure user safety and to prevent damage to equipment connected to the hose outlet. This helps maintain manageable hose stream pressures for firefighting operations.
References: NFPA standards for the installation and use of hose connections in sprinkler systems, focusing on safety and operational effectiveness.
NEW QUESTION # 41
In NFPA 13R, shadowed areas shall be permitted in the protection area of a pendant or upright sprinkler as long as the cumulative dry areas do not exceed
- A. 15 ft2 (1.4 m2)
- B. 12 ft2 (1.1 m2).
- C. 5 ft2 (0.46 m2).
- D. 10 ft2 (0.93 m2).
Answer: A
Explanation:
NFPA 13R allows for some shadowed (or dry) areas under sprinklers, provided they do not excessively compromise coverage. A cumulative dry area limit of 15 ft² is generally acceptable for residential occupancies, ensuring adequate overall protection while accommodating certain architectural features.
References: NFPA 13R's provisions for residential sprinkler systems, which offer flexibility in coverage to accommodate practical considerations in home layouts.
NEW QUESTION # 42
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NFPA CWBSP Exam Syllabus Topics:
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