Sewer, Drainage, and System
Requirements 2026 Exam
Questions and Verified Answers
| Already Graded A+
What type of system must every building with plumbing fixtures discharge
into? - 🧠 ANSWER ✔✔A sanitary sewer system.
, When must a building connect to a public sewer? - 🧠 ANSWER ✔✔When a
public sewer is available and connection is feasible.
What must be used if a public sewer is not available? - 🧠 ANSWER ✔✔An
approved private sewage disposal system.
Which agency regulates private sewage disposal systems in Ohio? - 🧠
ANSWER ✔✔The Ohio Department of Health.
Who supervises sewerage systems in municipalities? - 🧠 ANSWER ✔✔The
city engineer, sewer authority, or board of health.
What must sanitary drainage systems be designed to prevent? - 🧠
ANSWER ✔✔Backflow.
What must horizontal drainage piping maintain? - 🧠 ANSWER ✔✔Positive
slope for drainage.
What is the minimum slope for 2 1/2 inch or smaller horizontal drainage
piping? - 🧠 ANSWER ✔✔1/4 inch per foot.
What is the minimum slope for 3 inch or larger horizontal drainage piping? -
🧠 ANSWER ✔✔1/8 inch per foot.