When backflow prevention valves are installed on existing pipe scheduled systems, the friction losses of the device shall be accounted for when determining
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NFPA · NFPA-CWBSP
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When backflow prevention valves are installed on existing pipe scheduled systems, the friction losses of the device shall be accounted for when determining Reveal answer details Close answer detailsCorrect answerA
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What is the maximum percentage a fire pump's rated pressure is permitted to produce at churn condition? Reveal answer details Close answer detailsCorrect answerD
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A dairy processing plant containing empty plastic crates to a maximum height of 5 ft (1.5 m) should be classified as what occupancy type? Reveal answer details Close answer detailsCorrect answerB
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The contract document states that the fire sprinkler system must be capable of protecting Cartoned Nonexpanded Group A plastic stored on wood pallets to a height of 25 ft (7.6 m) under a 35 ft (10.7 m) high ceiling using K16.8 (240) ESFR sprinklers. What is the minimum operating pressure? Reveal answer details Close answer detailsCorrect answerB
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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? Reveal answer details Close answer detailsCorrect answerB
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To what exponent is the pipe diameter raised when calculating friction loss through a pipe with the Hazen- Williams formula? Reveal answer details Close answer detailsCorrect answerD
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What is the maximum pressure rating when using standard weight pattern malleable iron fittings that are 6 in. Reveal answer details Close answer detailsCorrect answerC
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Which Occupancy Classification is defined as occupancies or portions of other occupancies where combustibility is low, quantity of combustibles is moderate, stockpiles of combustibles do not exceed 8 ft (2.4 m), and fires with moderate rates of heat release are expected? Reveal answer details Close answer detailsCorrect answerB
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In a building where the maximum ceiling temperature will be 80 (26), what would be the lowest permissible temperature classification for the sprinklers? Reveal answer details Close answer detailsCorrect answerA
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An NFPA 13 fire sprinkler system requires listing of a main control valve and _____ Reveal answer details Close answer detailsCorrect answerA
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The minimum flow rate for the required forward flow test of a backflow prevention assembly shall be the Reveal answer details Close answer detailsCorrect answerD
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If a jockey pump start point is set at 165 psi (11.4 bar), the jockey pump stop point should be not less than Reveal answer details Close answer detailsCorrect answerC
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What is the correct number of sprinklers to calculate on a branchline for a building with an ordinary hazard (nonstorage) occupancy, a roof slope of a rise of 3 units in a run of 12 units, and with sprinklers spaced 11.5 ft (3.5 m) on center along the lines? Reveal answer details Close answer detailsCorrect answerC
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Based on an existing hydraulic placard located at the sprinkler system riser, the design of the sprinkler system is based on a density of 0.495 gpm/ft2 (20.1 mm/min) over an area of 2000 ft2 (186 m2). Sprinklers in cabinet are 286 degrees. Which of the following hazards can be protected with this design criteria? Reveal answer details Close answer detailsCorrect answerD
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Which Occupancy Classification is a machine shop considered? Reveal answer details Close answer detailsCorrect answerB |