Existing Work correct answer: A plumbing system or any part thereof installed prior to March 11, 2005.
Soil Pipe correct answer: Any pipe that
... [Show More] conveys the discharge of toilets, urinals or fixtures having similar functions to the building drain or building sewer. The discharge may be conveyed with or without the discharge from other fixtures
Water Distribution Pipe correct answer: A pipe within the building or on the premises that conveys water from the water service pipe to the point of usage
Barometric Loop. correct answer: A vertical loop of pipe, rising to a height sufficient to prevent back-siphonage from occurring in the potable water supply pipe. (Approximately 35 feet, depending on the weight of the atmosphere.)
Developed Length correct answer: The length of a pipeline as measured along the center line of the pipe or fittings.
Roughing-in. correct answer: The installation of all parts of the plumbing system that can be completed prior to the installation of fixtures. This includes drainage piping, water supply piping, vent piping, the necessary fixture supports, and any fixtures that are built into the building.
Trap Seal correct answer: The vertical distance between the crown weir and the top of the dip of the trap.
Air Gap (Drainage System). correct answer: The unobstructed vertical distance through the free atmosphere between the outlet of a waste pipe and the flood level rim of the receptacle into which the waste discharges.
Air
Fixture Unit. correct answer: A unit of liquid flow used in sizing both supply and drainage pipes. It is equal to 1 cubic foot per minute or approximately 7.5 gallons per minute.
Liquid Waste correct answer: Discharge from any fixture, appliance, area or appurtenance that does not contain human or animal waste matter suspended in a solution.
Vacuum correct answer: Any pressure less than that exerted by the atmosphere
Branch Interval correct answer: A distance along a soil or waste stack corresponding in general to a story height, but not less than eight feet in vertical height, and wherein the horizontal branches from one floor or story of a building are connected to the stack
Testing water supply shall be at a pressure no less than? correct answer: 125 PSI
Storm or Sanitary drains shall be installed at a slope that: correct answer: a slope that produces a computed velocity of discharge of not less than two feet per second.
Horizontal drainage piping which is (3) three inches in diameter or smaller shall be installed with a minimum uniform pitch correct answer: ¼ inch per foot
Horizontal drainage piping which is larger than three inches in diameter shall be installed with a minimum uniform pitch of correct answer: 1/8 inch per foot
Special Labs. All licensed plumbers and plumbing apprentices installing pipe connections or working on drains to hospital waste and vent systems, mortuary waste and vent systems, laboratory waste and vent systems, dental waste and vent systems and plumbing systems in radioactive sensitive areas correct answer: shall have the surface of their body and clothing protected by disposable or washable gowns similar or equal to the gowns, gloves and face masks worn by surgical staff. [Show Less]