Rhode Island Journeyman Plumber Practice Exam

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Copper tubing 1 1/4" in diameter and above should be supported every ______ feet?

  1. 3

  2. 6

  3. 10

  4. 15

The correct answer is: 3

Copper tubing with a diameter of 1 1/4 inches and above should be supported every 10 feet. This requirement is established to ensure the structural integrity and proper function of the piping system. Regular support helps prevent sagging, bending, or potential damage that may occur due to the weight of the tubing and the fluid it carries. When copper tubing is spaced too far apart without adequate support, it can lead to additional strain at the joints, which can result in leaks or failures over time. Understanding these support requirements is crucial for maintaining a reliable plumbing system and adhering to local plumbing codes.

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