International Plumbing Code Master Set Questions With Complete Solutions

_____ plumbing products and materials shall be listed by a third-party certification agency as complying with the referenced standards. correct answer: All Sleeves for pipes that pass through a foundation wall shall be _____ pipe sizes greater than the pipe passing through the wall. correct answer: two pipe sizes Exterior water supply system piping shall be installed not less than _____ inches below frost line and not less than _____ inches below grade. correct answer: 6 in. 12 in. In concealed locations where piping is installed through holes or notches in studs, joists or rafters less than _____ inches from the nearest edge of the member, the pipe shall be protected by steel shield plates. correct answer: 1 1/2 in. Other than cast-iron or galvanized steel piping. Buried piping shall be _____ throughout its entire length. correct answer: supported Rigid support sway bracing shall be provided at changes in direction greater than 45 degrees for pipe sizes _____ inches and larger. correct answer: 4 inches Trenches installed parallel to footings shall not extend below the _____-degree bearing plane of the footing or wall. correct answer: 45º The maximum horizontal spacing to support copper or copper-alloy pipe is _____ feet. correct answer: 12 ft. Review and know how to use this table. For pipe sizes greater than _____ inches, restraints shall be provided for drain pipes at all changes in direction and at all changes in diameter greater than two pipe sizes. correct answer: 4 in. Urinal partitions shall begin not more than 12" from and extend not less than _____ inches above the finished floor surface. correct answer: 60 in. Review the partition depth requirements. All plumbing system piping shall be tested with either _____ or, for piping systems other than plastic, by _____. correct answer: water, air When doing a drainage and vent water test, the water shall be kept in the system, or portion under test for at least _____ minutes. correct answer: 15 min. Annual inspections shall be made of all _____ prevention assemblies and air gaps to determine whether they are operable. correct answer: backflow The final test of the completed drainage and vent system shall be _____ and in sufficient detail to determine compliance with the provisions of this code. correct answer: visual In a parallel water distribution system where hot water piping is bundled with cold or hot water piping, each hot water pipe shall be _____. correct answer: Insulated Review the changes in this section. The minimum size condensate drainage line for refrigeration units over 20 tons but less than 35 tons shall be _____ inches. correct answer: 1 in. Know how to use the tables for the exam. Restaurants shall have a minimum of 1 lavatory for each _____ persons. correct answer: 200