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Three-quarter inch or 1-inch gas piping installed horizontally shall be supported at intervals not to exceed what?

  1. A 6 feet

  2. B 4 feet

  3. C 8 feet

  4. D 5 feet

The correct answer is: C 8 feet

Gas piping is critical for safety and efficiency, and proper installation includes following standards for support spacing. For three-quarter inch or one-inch gas piping installed horizontally, the requirement is to support it at intervals that do not exceed 8 feet. This spacing is determined to ensure that the piping system remains stable and secure, minimizing the risk of sagging or damage due to weight or external forces. Supporting the piping appropriately helps prevent undue stress and potential leaks, which are essential for maintaining safety and functionality in gas supply systems. Understanding this standard is crucial for any plumbing professional, as it directly impacts the integrity of gas line installations.