Journeyman Plumbers Exam General Plumbing Regulations 2

Question 1

Under the IPC, what is the minimum required air gap between a water supply outlet and the flood level rim of a fixture?

Accepted Answer

2 times the diameter of the supply pipe

Answer

The IPC requires an air gap of at least twice the diameter of the supply pipe, but never less than 1 inch.

Question 2

Which document primarily governs plumbing installations in most US jurisdictions?

Accepted Answer

International Plumbing Code (IPC) or Uniform Plumbing Code (UPC)

Answer

Most US jurisdictions adopt either the IPC or UPC as their primary plumbing code.

Question 3

A journeyman plumber encounters an existing installation that does not comply with the current code but was legal when installed. This is known as:

Accepted Answer

A grandfathered or nonconforming installation

Answer

Installations that were code-compliant when built but no longer meet current code are considered nonconforming (grandfathered) and are generally allowed to remain.

Question 4

What is the purpose of a sanitary cross fitting, and where is its use restricted?

Accepted Answer

It is used in drainage systems only in horizontal-to-horizontal connections where permitted

Answer

Sanitary crosses are generally restricted to horizontal drain installations and must not be used in vertical stacks because they can cause cross-flow.

Question 5

Under most plumbing codes, who is responsible for obtaining the required plumbing permit before work begins?

Accepted Answer

The licensed plumbing contractor or permit holder

Answer

The licensed plumbing contractor performing the work is responsible for obtaining the permit prior to starting the job.

Journeyman Plumbers Exam Practice Test

Journeyman Plumbers Exam Practice Test

Journeyman Plumbers Exam General Plumbing Regulations 2