Journeyman Plumbing Test Study Guide Questions with Correct Answers

Journeyman Plumbing Test Study Guide Questions with Correct Answers 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 backfilling pipe systems crown of the pipe must be covered by...? - Correct Answer 12 inches of tamped earth. T or F: truss members and components may be cut, drilled, notched or spliced. - Correct Answer false. unless they obtain approval from a design professional. hanger spacing: steel pipe - Correct Answer every 12 ft horizontal 15 vertical where hot water piping is bundled w/cold or hot water piping... - Correct Answer each hot water pipe shall be insulated. pipe sizes great than 4 inch need restraints for drain pipes at.. - Correct Answer all changes in direction and changes in diameter greater that 2 pipe sizes. testing gauge required for 10 psi or less? - Correct Answer has increments of .10psi or less. testing gauge required for 10 psi up to 100 psi - Correct Answer increments of 1 psi testing gauge required for greater than 100 psi - Correct Answer increments of 2 psi tests shall last not less than..? - Correct Answer 15 minutes