CPD Codes, Regulations, & Standards 2

Question 1

Under the IPC, what is the minimum trap seal depth required for plumbing fixtures?

Accepted Answer

2 inches

Answer

The IPC requires a minimum trap seal depth of 2 inches to prevent sewer gas from entering the building.

Question 2

Which federal regulation governs the maximum flow rate of showerheads manufactured for sale in the United States?

Accepted Answer

Energy Policy Act (EPAct)

Answer

The Energy Policy Act (EPAct) of 1992 sets federal maximum flow rates for showerheads at 2.5 GPM.

Question 3

Per ASME A112.19.2, what standard governs vitreous china plumbing fixtures?

Accepted Answer

ASME A112.19.2

Answer

ASME A112.19.2 is the standard specifically covering vitreous china plumbing fixtures including sinks and water closets.

Question 4

Which IPC section addresses the required venting of a combination waste and vent system?

Accepted Answer

IPC Section 918

Answer

IPC Section 918 covers combination drain and vent systems, specifying sizing and slope requirements.

Question 5

ASSE 1070 establishes performance requirements for which type of device?

Accepted Answer

Thermostatic mixing valves for individual fixture use

Answer

ASSE 1070 covers performance requirements for water temperature limiting devices at individual fixtures to prevent scalding.

(CPD) Certified Plumbing Designer Practice Test