Journeyman Plumbing Test Study Guide Questions with 100% Verified Correct Answers 2025/2026
Journeyman Plumbing Test Study Guide Questions with 100% Verified Correct Answers 2025/2026 more restrictive provisions apply - Correct Answer where conflicts occur between code and manufacture instructions. what shall be 3rd party certified as conforming to NSF 14 - Correct Answer all plastic pipe, fittings and components. all strainer plates on drain inlets shall be designed and installed so that all openings are..? - Correct Answer not greater than 1/2 inch (12.7) in least dimension. pipes through foundation walls need..? - Correct Answer a relieving arch or a pipe sleeve which is 2 pipe sized bigger. waterproofing joints at the roof and around vent pipes shall be made water tight by use of....? - Correct Answer lead, copper, steel, aluminum, plastic, or approved flashing/flashing material. exterior wall opening must be made...? - Correct Answer water tight. T or F: buried piping needs to be supported throughout it entire length. - Correct Answer True When backfilling the trench, that was over excavated - Correct Answer backfill up to installation level of bottom of pipe w/sand or gravel in layers no more than 6" in depth and compacted after each placement. when a rock is encountered trenching - Correct Answer removed to not less than 3 inches below installation level. backfill with tamped sand. when backfillin
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