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!

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According to regulations, a kitchen sink should not drain into a horizontal line shared with a smaller fixture unless the smaller fixture is at least

  1. 2 inches in diameter

  2. 3 inches in diameter

  3. 4 inches in diameter

  4. 5 inches in diameter

The correct answer is: 3 inches in diameter

According to regulations, a kitchen sink should not drain into a horizontal line shared with a smaller fixture unless the smaller fixture is at least 3 inches in diameter. This requirement is in place to ensure proper drainage capacity and prevent potential blockages or backups in the plumbing system. Option A, 2 inches in diameter, is too small to effectively accommodate the drainage from a kitchen sink. Options C and D, 4 inches and 5 inches in diameter, are unnecessary and excessive for accommodating the drainage from a kitchen sink into a shared horizontal line with a smaller fixture.