Ch 9 - Vents Flashcards
Fill in the blank
Each plumbing fixture trap must be protected against _____.
Siphonage and backpressure
Each plumbing fixture trap, except as otherwise provided in this code, shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.
2024 UPC - 901.2 Vents Required.
Fill in the blank
Fixture traps are protected by vent pipes from _____.
Siphonage
Each plumbing fixture trap, except as otherwise provided in this code, shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.
2024 UPC - 901.2 Vents Required.
Fill in the blank
All hard drawn copper tubing shall be marked with a colored stripe _____.
TRUE
Copper or copper alloy tubing, in addition to the required incised marking, shall be marked in accordance with either ASTM B306 or ASTM B88. The colors shall be: Type K, green; Type L, blue; Type M, red; and Type DWV, yellow.
2024 UPC - 903.2.3 Marking.
Fill in the blank
The diameter of an individual vent shall not be less than _____ inches nor less than 1/2 the diameter of the drain to which it is connected.
1-1/4 inches
The size of vent piping shall be determined from its length and the total number of fixture units connected thereto, in accordance with Table 703.2. The diameter of an individual vent shall be not less than 1-1/4 inches (32 mm) nor less than one-half the diameter of the drain to which it is connected. In addition, the drainage piping of each building and each connection to a public sewer or a private sewage disposal system shall be vented by means of one or more vent pipes, the aggregate cross-sectional area of which shall be not less than that of the largest required building sewer, as determined from Table 703.2.
2024 UPC - 904.1 Size.
Fill in the blank
No more than _____ of the total permitted length of any minimum sized vent shall be installed in a horizontal position.
45294
Not more than one-third of the total permitted length, in accordance with Table 703.2, of a minimum sized vent shall be installed in a horizontal position. Where a minimum-sized vent is increased one pipe size for its entire length, the maximum length limitation shall not apply.
2024 UPC - 904.2 Length.
Fill in the blank
Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than _____ inches above the roof.
6 inches
Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than 6 inches (152 mm) above the roof nor less than 1 foot (305 mm) from a vertical surface. ABS and PVC piping exposed to sunlight shall be protected by water based synthetic latex paints.
2024 UPC - 906.1 Roof Termination.
Fill in the blank
Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than _____ foot from any vertical surface.
1 foot
Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than 6 inches (152 mm) above the roof nor less than 1 foot (305 mm) from a vertical surface. ABS and PVC piping exposed to sunlight shall be protected by water based synthetic latex paints.
2024 UPC - 906.1 Roof Termination.
Fill in the blank
Termination of each vent must be a minimum of _____ in any direction from a lot line, alley and street excepted.
3 feet
Each vent shall terminate not less than 10 feet (3048 mm) from, or not less than 3 feet (914 mm) above, an openable window, door, opening, air intake or vent shaft, or not less than 3 feet (914 mm) in every direction from a lot line, alley and street excepted.
2024 UPC - 906.2 Clearance.
Fill in the blank
Each vent shall terminate not less than _____ feet in every direction from any lot line (alley and street excepted).
3 feet
Each vent shall terminate not less than 10 feet (3048 mm) from, or not less than 3 feet (914 mm) above, an openable window, door, opening, air intake or vent shaft, or not less than 3 feet (914 mm) in every direction from a lot line, alley and street excepted.
2024 UPC - 906.2 Clearance.
True or False
Flagpoling of vents is prohibited except where the roof is used for purposes other than weather protection.
TRUE
Vent pipes shall be extended separately or combined, of full required size, not less than 6 inches (152 mm) above the roof or firewall. Flagpoling of vents shall be prohibited except where the roof is used for assembly purposes or parking. Vents within 10 feet (3048 mm) of a part of the roof that is used for assembly purposes or parking shall extend not less than 7 feet (2134 mm) above such roof and shall securely stay.
2024 UPC - 906.3 Use of Roof.
Fill in the blank
Vent pipes for outdoor installations shall extend at least _____ feet above the surrounding ground and shall be securely supported.
10 feet
Vent pipes for outdoor installations shall extend not less than10 feet (3048 mm) above the surrounding ground and shall be securely supported.
2024 UPC - 906.4 Outdoor Installations.
Fill in the blank
Joints at the roof around vent pipes shall be made _____ by the use of approved flashings or flashing material.
Watertight
Joints at the roof around vent pipes shall be made watertight by the use of approved flashings or flashing material.
2024 UPC - 906.5 Joints.
What method must be used to connect a parallel vent stack to a drainage stack?
Yoke vent
Each drainage stack that extends 10 or more stories shall be served by a parallel vent stack, which shall extend undiminished in size from its upper terminal and connect to the drainage stack at or immediately below the lowest fixture drain. Each such vent stack shall also be connected to the drainage stack at each fifth floor, counting down from the uppermost fixture drain, using a yoke vent, the size of which shall not be less in diameter than either the drainage or the vent stack, whichever is smaller.
2024 UPC - 907.1 Drainage Stack.
Fill in the blank
No wet vent shall exceed _____ feet in developed length.
6 feet
Wet venting is limited to vertical drainage piping receiving the discharge from the trap arm of one and two fixture unit fixtures that also serves as a vent not exceeding four fixtures. Wet-vented fixtures shall be within the same story; provided, further, that fixtures with a continuous vent discharging into a wet vent shall be within the same story as the wet-vented fixtures. No wet vent shall exceed 6 feet (1829 mm) in developed length.
2024 UPC - 908.1 Vertical Wet Venting
Fill in the blank
The vertical piping between any two (2) consecutive inlet levels shall be considered a _____ vented section.
Wet
The vertical piping between two consecutive inlet levels shall be considered a wet-vented section. Each wet-vented section shall be not less than one pipe size exceeding the required minimum waste pipe size of the upper fixture or shall be one pipe size exceeding the required minimum pipe size for the sum of the fixture units served by such wet-vented section, whichever is larger, but in no case less than 2 inches (50 mm) in diameter.
2024 UPC - 908.1.1 Size.
