Plumbing Code Exam Questions Answered Correctly Latest Update

Plumbing Code Exam Questions Answered Correctly Latest Update Definition Any combination of fixtures, not to exceed one water closet, 2 lavs, either 1 bathtub or bath/ shower combo, and 1 shower. May include bidet & floor drain. - Answers Bathroom Group Definition A pipe that makes an angle of more than 45 degrees with the vertical is considered? - Answers Vertical Pipe A device and system of piping that maintains a water seal in a remote trap is called? - Answers Trap Primer Table 1002.2 The developed length of a 2" trap arm, from the trap weir to the inner edge of the vent shall not exceed how many feet? - Answers 5 feet Definition Having access thereto, but which first may require the removal of an access panel, door, or similar obstruction. - Answers Accessible Definition Having direct access without the necessity of removing a panel, door, or similar obstruction. - Answers Readily Accessible Table 703.2 How many Fixture Units may a 1 1/2" vent pipe serve? - Answers 8 fixture units Table 703.2 *Note 6 Vent piping should not exceed ___________ of the total permitted length horizontally. - Answers 1/3 Table 703.2 *Note 6 The vent shall not be less than _______ or _______. - Answers 1 1/4" or less than 1/2 the diameter of the drain. Definition Water at a temperature exceeding or equal to 100F - Answers Hot water Definition The slope or fall of a line of pipe in reference to a horizontal plane. - Answers Grade Definition The pipe carrying potable water from the water meter or other source of water supply to a building. - Answers Building Supply Definition A room equipped with only a water closet and lavatory. - Answers Half Bathroom Table 1002.2 The max distance of a 2" trap arm shall not exceed ____. - Answers 5 feet or 60" The scale on a set of plans is 1/8 inch= 1 foot. The actual length of a water line with plan of 5" would be ___________ feet. - Answers 40 feet The developed length of a 1 1/2" trap arm shall not exceed ______________. - Answers 3ft 6in or 42 inches What is the max fixture unit load size for a 2" horizontal drain? What is the max fixture unit load size for a 2" vertical drain? - Answers Horizontal: 8fu Vertical: 16fu 605.1.2 Flared Joints Flaring tools are used to make joints for __________ or _________. - Answers soft copper or copper alloy Who needs to inspect and approve the plumbing system before it is concealed and covered? - Answers Authority Having Jurisdiction (AHJ) 905.3 Vent Pipe Rise Vent pipes may offset horizontally when the distance above the overflow level of the fixture is not less than ____________. - Answers 6" 105.2.3 Inspection Requests The Authority Having Jurisdiction shall be permitted to require a ____________ notice before inspection. - Answers 24 hours 811.1 Pretreatment Copper tubing and fittings shall be permitted to be used with DWV systems except for ____________. - Answers Chemical waste How is Pex defined? - Answers Cross-linked polyethylene The max vertical distance for a tailpiece allowed between a fixture and the trap weir is _____________. - Answers 24" Each vent pipe or stack shall extend through its flashing and shall terminate vertically above the roof at least __________. - Answers 6 inches All indirect waste piping that requires an airgap shall discharge into the building drainage system through ______________. - Answers A drainage air gap of 1" minimum 604.13 Water Heater Connectors Pex tubing shall not be installed within the first __________ of piping connected to a water heater. - Answers 18" 706.3 Horizontal to Horizontal A horizontal drainage line connecting with other horizontal drainage lines shall enter through a __________, __________, __________, or other approved fittings of equivalent sweep. - Answers 45 degree wye branch, combo wye, one-eighth bend branches One gallon of water weighs approximately _______. - Answers 8.34 lbs 910.4 Size The cleanout for a 4" diameter drain pipe shall not be smaller than ________. - Answers 3 1/2" Stand pipe receptors for clothes washers shall extend above the trap no less than _______. - Answers 18 inches App A A104.1 The minimum residual water pressure that shall be maintained at the highest fixtures in the supply system shall not be less than ______. - Answers 8 psi Definition What is a trap that does not maintain a proper trap seal? - Answers Insanitary What is Chlorinated Polyvinyl Chloride? - Answers CPVC Definitions A quantity in terms of which the load production effects on the plumbing system. - Answers Fixture Units (FU) Is 95F considered hot water? - Answers No What is the condition that is contrary to sanitary principles or is injurious to health? - Answers Insanitary Definition The principal artery of a system of continuous piping to which banches may be connected - Answers Main 404.2 Overflows The overflow pipe from a fixture shall be connected on the _______________. - Answers House or inlet side of the trap 409.2 Waste Outlet The diameter of a waste outlet and fixture tailpiece of a bathtub shall not be less than ___________. - Answers 1 1/2" diameter Does unsanitary & insanitary share the same meaning? - Answers Yes