Massachusetts Plumbers Journeyman Practice Exam

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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.

What material must cleanout plugs be composed of according to the requirements?

Aluminum
Brass or plastic
Stainless steel
Copper

The correct answer is: Brass or plastic

The correct choice, which specifies that cleanout plugs must be made of brass or plastic, aligns with the regulations set forth in plumbing code requirements. Brass is favored due to its durability and resistance to corrosion which helps ensure the integrity and longevity of the plumbing system. Additionally, plastic options are often chosen for their resistance to chemical exposure and ease of installation, as well as being lightweight and less prone to rust. In contrast, while aluminum, stainless steel, and copper are used in various plumbing applications, they do not meet the specific requirements for cleanout plugs. Aluminum may corrode easily in certain environments, while stainless steel, though strong, is often not necessary for this application. Copper, while antimicrobial and reliable in other contexts, is not typically specified for cleanout plugs, making brass and plastic the preferred materials.