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Prepare for the NFPA Certified Water-Based Systems Professionals exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
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The questions for CWBSP were last updated on Jan 19, 2025.
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What is the required minimum design density/area for protection of floor stacked, idle wood pallets to a height of
8 ft (2.4 m) under a 30 ft (9.1 m) roof deck using high expansion foam with a K11.2 (160) CMDA sprinkler?
For floor-stacked idle wood pallets, a design density of 0.225 gpm/ft over a minimum design area is typically used for calculating water supply requirements. The larger area option (2,500 ft) provides a more conservative approach to ensuring adequate protection.
What ASTM standard covers the manufacture of chlorinated polyvinyl chloride (CPVC) pipe, allowed to be used in fire
sprinkler systems?
ASTM F442 covers the standards for the manufacture of chlorinated polyvinyl chloride (CPVC) pipes, which are permitted for use in fire sprinkler systems due to their suitable properties for carrying water in fire suppression applications.
What is the maximum allowable water delivery time for a dry pipe system protecting an Ordinary Hazard Group II occupancy?
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
A warehouse has palletized storage of empty wood crates on wood pallets to a height of 11 ft (3.4 m). What is the
minimum design density?
The minimum design density for protecting palletized storage of empty wood crates on wood pallets up to a certain height is determined by considering the combustibility of the materials and the configuration of the storage. A design density of 0.20 gpm/ft is often recommended for such light hazard commodities to provide adequate water distribution over the fire area.
A five story building is proposed, with the ground floor being used for retail space and the upper four floors for
apartments. There is no 3-hour rated building separation between the retail and residential spaces. Which standard is
applicable for the design of the fire sprinkler system?
NFPA 13 is the applicable standard for the design of the fire sprinkler system in a mixed-use building with retail space and residential apartments without a 3-hour rated separation. NFPA 13 provides comprehensive coverage for commercial and residential spaces in multi-use buildings.
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