FlashcardsPlumbing Vents: DWV System Code Flashcards
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This 20-card flashcard set reviews plumbing code requirements for drainage, waste, and vent (DWV) systems. Cards cover trap venting, vent sizing, stack intervals, trap seals, island fixtures, wet vents, and terminal placement requirements. Use it for exam prep, code review, or on-the-job reference while studying for plumbing certification or licensing.
Terms in This Set
- 1.)WHY ARE PLUMBING TRAPS REQUIRED TO BE VENTED?D.)ALL OF THE ABOVE
- 2.)SOIL AND WASTE STACKS IN BUILDINGS HAVING MORE THAN__BRANCH INTERVALS SHALL BE PROVIDED W/ A RELIEF VENT (YOKE VENT) AT EACH FIFTH (UPC) OR TENTH (IPC) INTERVAL BEGINNING W/ THE TOP FLOOR D.)10
- 3.)AN OPEN VENT TERMINAL FROM A DRAINAGE SYSTEM SHALL NOT BE LOCATED DIRECTLY BENEATH ANY DOOR,OPENABLE WINDOW,OR OTHER AIR INTAKE OPENING OF THE BUILDING OR OF AN ADJACENT BUILDING, AND ANY SUCH VENT TERMINALSHALL NOT BE WITHIN_FEET HORIZONTALLY OF SUCH AN OPENING UNLESS IT IS_FEET OR MORE ABOVE THE TOP OF SUCH OPENING B.)10,3
- 4.)VENTING SYSTEMS FOR A DWV PLUMBING INSTALLATION ARE REQUIRED TOA.)TERMINATE IN OPEN AIR ABOVE THE BUILDING BE SERVED BY PLUMBING
- 5.)CIRCUIT VENTS MAY BE C.)CONNECTED TO A MAIN VENT SYSTEM THAT EXTENDS TO OUTSIDE AIR
- 6.)AN ISLAND FIXTURE MUST HAVE A__INSTALLED TO ENSURE PROPER VENTILATION OF THE FIXTUREB.)RELIEF VENT
- 7.)THE VENT SIZE SHALL BE NOT LESS THAN D.)1 1/2 INCHES
- 8.)IN ORDER TO ELIMINATE A CROWN VENT, THE DISTANCE FROM THE WEIR TO THE VENT OPENING SHALL BE NO LESS THAN__C.)TWO TIMES THE DIAMETER OF THE PIPE
- 9.)A VENT STACK SHALL BE REQUIRED FOR EVERY DRAINAGE STACK THAT HAS__BRANCH INTERVALS OR MOREA.)FIVE
- 10.)HOW WOULD YOU DESCRIBE A BRANCH VENT?D.)IT IS A VENT THAT RUNS HORIZONTALLY AND PROVIDES A CONNECTION POINT FOR OTHER VENTS
- 11.)COMMON VENTS CAN ONLY BE USED B.)WHEN ALL FIXTURES BEING VENTED ARE CONTAINED ON THE SAME FLOOR LEVEL
- 12.)WHICH OF THE FOLLOWING TYPES OF PLUMBING FIXTURES CAN BE VENTED W/ ISLAND VENTS?A.)SINKS
- 13.)VENT TERMINALS EXTENDING THROUGH THE WALL SHALL TERMINATE AT A POINT NOT LESS THAN_FEET FROM A LOT LINE AND NOT LESS THAN_FEET ABOVE AVERAGE GROUND LEVEL A.)10,10
- 14.)A WET VENT SERVES ASA.)A VENT FOR ONE FIXTURE AND A DRAIN FOR ANOTHER FIXTURE
- 15.)IN ORDER TO ELIMINATE SIPHONAGE ON A TRAP ARM TO A LAVATORY, THE_B.)WEIR OF THE TRAP MUST BE BELOW THE VENT OPENING
- 16.)OPEN VENT PIPES THAT EXTEND THROUGH A ROOF SHALL BE TERMINATED NOT LESS THAN_INCHES ABOVE THE ROOFA.6
- 17.)A VENT THAT IS DRY MUST BE VERTICAL UNTIL IT IS AT LEAST__B.)6 INCHES ABOVE FLOOR RIM
- 18.)THE VENT SYSTEM SHALL BE DESIGNED TO PREVENT A TRAP SEAL FROM BEING EXPOSED TO A PRESSURE DIFFERENTIAL THAT EXCEEDS_INCH WATER COLUMN ON THE OUTLET SIDE OF THE TRAP C.)1
- 19.)ANYTIME YOU DOUBLE THE SIZE OF A PIPE YOU INCREASE THE FACTOR BY_A.)4
- 20.)A PENINSULA SINK INSTALLATION REQUIRES THE VENT TO RISE AS HIGH AS POSSIBLE UNDER THE COUNTERTOP SLOPING A MINIMUM__BACK TO THE FIXTURE B.)1/4 INCH
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