Rhode Island Journeyman Plumber Practice Exam 2025 - Free Journeyman Plumber Practice Questions and Study Guide

Question: 1 / 400

What is the minimum weight for sheet copper?

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67%

The minimum weight for sheet copper is typically specified in terms of ounces per square foot. The correct answer reflects an industry standard where the weight of sheet copper is often 67% heavier than the base measures used for comparison. This weight ensures that the copper has sufficient thickness and durability for various plumbing applications.

In plumbing, heavier sheets of copper provide improved resistance to corrosion and mechanical stress, which are essential factors for ensuring the longevity and reliability of plumbing systems. Understanding that 67% is the minimum weight allows professionals to assess the quality of materials they are working with and make informed decisions regarding installation and compliance with local codes.

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