IPC - International Plumbing Code Fixtures, Faucets, and Fittings Questions and Answers

Question 1

According to the IPC, what is the minimum diameter for the trap and fixture drain for an automatic clothes washer standpipe?

Accepted Answer

2 inches (51 mm)

Answer

1 1/2 inches (38 mm)

Answer

2 1/2 inches (64 mm)

Answer

3 inches (76 mm)

Question 2

A plumber is installing fixtures in a new commercial building. Which of the following is a requirement for water closets provided for public use?

Accepted Answer

They must be equipped with seats of the hinged open-front type.

Answer

They must be of the round-front bowl type.

Answer

They must be equipped with a dual-flush mechanism.

Answer

They must have a maximum flush volume of 1.0 gallon per flush.

Question 3

In a healthcare facility, a clinical sink is being installed. What is a key requirement regarding the faucet installation to prevent contamination?

Accepted Answer

The water stream should not fall directly into the waste outlet.

Answer

The faucet must have an aerator to soften the water stream.

Answer

The water stream must discharge directly into the drain outlet.

Answer

The faucet must be equipped with manual hot and cold handles.

Question 4

An inspector notes a floor drain in an infrequently used mechanical room. To prevent the loss of the trap seal due to evaporation, the IPC requires the installation of:

Accepted Answer

A trap seal primer valve or a deeper seal trap.

Answer

A deeper seal trap with a minimum 6-inch seal.

Answer

A check valve on the drain outlet.

Answer

A direct connection to a vented waste stack.

Question 5

What is the maximum allowable flow rate for a public-use lavatory faucet according to the standard incorporated into the IPC?

Accepted Answer

0.5 gallons per minute (gpm)

Answer

1.5 gallons per minute (gpm)

Answer

2.2 gallons per minute (gpm)

Answer

2.5 gallons per minute (gpm)

Question 6

A new bathtub is being installed. According to the IPC, the waste and overflow outlets must be connected to tubing or piping that is NOT less than what diameter?

Accepted Answer

1 1/2 inches

Answer

2 inches

Answer

1 1/4 inches

Answer

1 inch