최신 CWBSP 무료덤프 - NFPA Certified Water-Based Systems Professionals
Using the Hazen-Williams formula, determine the friction loss in 150 ft (45.7 m) of 1 in. (25 mm) black steel schedule
40 pipe, flowing 30 gpm (115 lpm) in a wet system.
40 pipe, flowing 30 gpm (115 lpm) in a wet system.
정답: C
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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
정답: D
설명: (DumpTOP 회원만 볼 수 있음)
Antifreeze systems that contain a backflow preventer between the antifreeze piping and the wet pipe system must be equipped with
정답: B
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To what exponent is the pipe diameter raised when calculating friction loss through a pipe with the Hazen- Williams formula?
정답: D
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What is the maximum floor area that can be protected by a single ordinary hazard sprinkler system?
정답: D
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Where must a diesel engine driven fire pump's fuel tank be located for areas subject to temperatures below 32° F (0°#)?
정답: A
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For an existing antifreeze system without a backflow prevention device, what size hole is required in the check valve separating the supply and the antifreeze?
정답: B
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A sprinkler system is to be designed for an area containing a diesel engine drive fire pump and day tank. What hazard classification is required for the sprinkler system in this area?
정답: A
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A fire pump must produce at least what percentage of its rated pressure at the 150% flow condition?
정답: B
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A sprinkler system has been installed with 100 sprinklers. What is the minimum number of spare sprinklers to be provided?
정답: A
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