Drainage, Waste & VentQuestion 73 of 360
A vent terminal near an openable window or door must terminate at least:
a.3 feet above or 10 feet horizontally away from the opening
b.1 foot above or 5 feet away
c.2 feet above or 6 feet away
d.5 feet above or 15 feet away
Explanation
A vent must terminate at least 3 feet above or at least 10 feet horizontally from any openable window, door, or air intake within 10 feet, to keep sewer gas out of the building. The other combinations are less than the code-required separation and could allow gas to re-enter.
Law Reference: 2022 California Plumbing Code (CPC) §906.2Practice all 360 questions free — no signup required.
Related questions on this topic
- What is the maximum DFU load on a 2 inch horizontal fixture branch?
- What is the maximum number of water closets permitted on a 3 inch horizontal fixture branch?
- A vent terminating through a roof must extend above the roof surface at least:
- For a 2 inch trap arm, the maximum developed length to the vent is:
- For a 3 inch trap arm, the maximum developed length to the vent is:
- The minimum trap and trap arm size for a lavatory is:
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-36 Plumbing Trade Examination · How we review