Massachusetts Plumbers Journeyman Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Massachusetts Plumbers Journeyman Exam. Prepare with multiple choice questions, hints, and detailed explanations. Ace your licensing exam with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is prohibited as per the regulations governing fittings in plumbing?

Use of straight T branch fittings in drainage
Use of running threads in a drainage system
Use of bands in a drainage system
Use of Sisson Joint fittings

The correct answer is: Use of straight T branch fittings in drainage

The regulation prohibits the use of straight T branch fittings in drainage systems because they can lead to blockages and turbulence in the flow. A straight T fitting can create a situation where waste material does not flow as intended, increasing the chances of clogs forming at the connection. Instead, drainage systems typically require fittings that promote smoother directional changes, such as angled fittings that allow waste to flow more freely. The alternatives presented do not face the same prohibitions under plumbing codes. Running threads and bands can be used appropriately, provided they are part of a compliant system. Sisson Joint fittings, while less common, do not inherently violate plumbing regulations when used in proper contexts.