PC PC Plumbing Codes & Regulations

Question 1

Which model plumbing code is most widely adopted by US states and municipalities?

Accepted Answer

International Plumbing Code (IPC)

Answer

Uniform Plumbing Code (UPC)

Answer

National Plumbing Code (NPC)

Answer

Standard Plumbing Code (SPC)

Question 2

Under the IPC, what is the minimum trap arm length allowed for a 1.5-inch drain from a lavatory?

Accepted Answer

No minimum is specified

Answer

1.5 inches

Answer

2 inches

Answer

3 inches

Question 3

A plumber installs a new water closet in a commercial building. According to the IPC, what is the minimum required flush volume for a tank-type water closet?

Accepted Answer

1.6 gpf

Answer

1.0 gpf

Answer

2.0 gpf

Answer

3.5 gpf

Question 4

According to plumbing code, a vent pipe that terminates through the roof must extend at least how far above the roof surface in a climate with fewer than 30 days below 0°F?

Accepted Answer

6 inches

Answer

3 inches

Answer

12 inches

Answer

24 inches

Question 5

Which of the following fixtures is NOT required to be individually vented under standard IPC provisions?

Accepted Answer

Floor drain

Answer

Water closet

Answer

Bathtub

Answer

Kitchen sink

Question 6

When a plumbing permit is required by code, who is typically authorized to sign and pull the permit?

Accepted Answer

A licensed plumber or plumbing contractor

Answer

The building owner

Answer

The general contractor

Answer

The local building inspector