An inspector is reviewing the plumbing system of a commercial building. Which of the following is a requirement for the installation of water supply and drainage piping?
- APiping must be installed in a straight line
- Piping must be installed with a minimum slope of 1/4 inch per foot
- CPiping must be installed with a maximum slope of 1/4 inch per foot
- DPiping must be installed with a minimum slope of 1/8 inch per foot
Exam tip
Understanding the required slopes for plumbing piping is crucial for proper installation and function.
Why B is correct
The IBC requires that water supply and drainage piping be installed with a minimum slope of 1/4 inch per foot to ensure proper drainage and prevent backups.