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Plumber's Licensing Exam: Practice Test 3
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Avg score: 87% Most missed: “Which of the following types of material should not be used in potable water dis…”
Plumber's Licensing Exam: Practice Test 3
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1. If the water pressure in the public main is insufficient to supply the minimum pressure in a building, a _______________________ must be used to bring the water system into compliance with the code.