2024 P1 Plumbing Administration by mike.stahl | May 4, 2026 Welcome to your 2024 P1 Plumbing Administration Name Email 1. When air testing a DWV system, each section must be pressurized to at least 5 psi or ________ inches mercury column. 10 15 12 5 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. 2. Non-plastic DWV systems must be tested on completion of the rough piping installation by ________ with no evidence of leakage. Neither A nor B Either A or B water air None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. 3. All ________ affected by new plumbing work, new plumbing work, or alterations, must be inspected by a building official to be certain that the requirements of the code are being followed. None of the above parts of existing systems complete existing systems complete old systems None Show Hint New plumbing work and parts of existing systems affected by new work or alterations shall be inspected by the building official to ensure compliance with the requirements of this code. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.1 Inspection required. 4. Gauges used for testing requiring a pressure of greater than 10 psi must utilize a testing gauge having increments of ________ psi or less. 1 0.10 0.25 2 None Show Hint Gauges used for testing shall be as follows: 1. Tests requiring a pressure of 10 psi or less shall utilize a testing gauge having increments of 0.10 psi (0.69 kPa) or less. 2. Tests requiring a pressure higher than 10 psi (0.69 kPa) but less than or equal to 100 psi (690 kPa) shall use a testing gauge having increments of 1 psi (6.9 kPa) or less. 3. Tests requiring a pressure higher than 100 psi (690 kPa) shall use a testing gauge having increments of 2 psi (14 kPa) or less. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.9 Test gauges. 5. All backflow prevention assemblies must be inspected to prove that they are: in line operable anti-siphon type None of the above None Show Hint Inspections shall be made of backflow prevention assemblies to determine whether they are operable. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests. P2503.8 Inspection and testing of backflow prevention devices. P2503.8.1 Inspections. 1 out of 3 6. Existing building drains and sewers must be internally examined before they may be connected with: new systems mixed systems old systems None of the above None Show Hint Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system shall be internally examined to verify that the piping is sloping in the correct direction, is not broken, is not obstructed and is sized for the drainage load of the new plumbing drainage system to be installed. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502: Existing Plumbing Systems P2502.1 Existing building sewers and building drains. 7. When an entire sanitary drainage system of an existing building is replaced, the drains and sewers must be internally examined to be certain that the piping is ________ for the drainage load. correct All of the above enlarged sized None Show Hint Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system shall be internally examined to verify that the piping is sloping in the correct direction, is not broken, is not obstructed and is sized for the drainage load of the new plumbing drainage system to be installed. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502, Existing Plumbing Systems P2502.1 Existing building sewers and building drains. 8. When performing an air test for DWV rough plumbing, the portion under test shall be maintained at a gauge pressure of ________ psi. 5 10 7 8 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503 Inspection and Tests P2503.5 Drain, waste and vent systems. P2503.5.1 Rough plumbing. 9. When being tested, by means of a test plug being inserted at the connection to the public sewer and filling with water, a building sewer must maintain the pressure for ________ minutes or more. 10 30 20 15 None Show Hint The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes. The building sewer shall be water tight at all points. A forced sewer test shall consist of pressurizing the piping to a pressure of not less than 5 psi (34.5 kPa) greater than the pump rating and maintaining such pressure for not less than 15 minutes. The forced sewer shall be water tight at all points. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.4 Building sewer testing. 10. When performing a DWV water test, each section of the rough plumbing shall be filled with water to a point no less than ________ above the highest fitting connection in that section. 10 feet 4 feet 5 feet 7 feet None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503 Inspection and Tests P2503.5 Drain, waste and vent systems. P2503.5.1 Rough plumbing. 2 out of 3 11. New plumbing work and ________ affected by new work or alterations must be inspected by the building official to ensure compliance with the requirements of the code. fixtures existing systems connections appliances None Show Hint New plumbing work and parts of existing systems affected by new work or alterations shall be inspected by the building official to ensure compliance with the requirements of this code. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.1 Inspection required. 12. Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system must be internally examined to verify that ________. the piping is sloping in the correct direction piping is not obstructed All of the above the piping is not broken None Show Hint Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system shall be internally examined to verify that the piping is sloping in the correct direction, is not broken, is not obstructed and is sized for the drainage load of the new plumbing drainage system to be installed. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502, Existing Plumbing Systems P2502.1 Existing building sewers and building drains. 13. Provided that they are ________ and not hazardous, minor additions, alterations, renovations and repairs to plumbing systems that already exist are allowed in the same arrangement and manner as the existing system. done in a neat workman like manner pre-arranged with a master plumber UL listed approved None Show Hint Additions, alterations, renovations or repairs to any plumbing system shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with the requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded. Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502: Existing Plumbing Systems P2502.2 Additions, alterations or repairs. 14. When being tested, by means of a test plug being inserted at the connection to the public sewer and filling with water, a building sewer must be tested with at least a ________ foot head of water. 15 20 5 10 None Show Hint The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes. The building sewer shall be water tight at all points. A forced sewer test shall consist of pressurizing the piping to a pressure of not less than 5 psi (34.5 kPa) greater than the pump rating and maintaining such pressure for not less than 15 minutes. The forced sewer shall be water tight at all points. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.4 Building sewer testing. 15. If using air to test a DWV system, a gauge pressure of 10 inches of mercury column or 5 psi must be held at least ________ minutes without adding any air. 15 10 20 30 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. 3 out of 3 Previous Start Quiz Next Time's up
