Horizontal CPVC pipe shall be supported at _____ foot intervals for 1 inch or less and for larger pipe ____ foot intervals.

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Study for the Kentucky Journeyman Plumbing Test. Use flashcards and multiple choice questions with hints and explanations to improve your knowledge. Prepare for your exam effectively!

Multiple Choice

Horizontal CPVC pipe shall be supported at _____ foot intervals for 1 inch or less and for larger pipe ____ foot intervals.

Explanation:
Spacing for horizontal CPVC piping is set to control deflection and joint stress between supports. Smaller piping is more prone to sag between hangers, so it needs closer support. For CPVC that is 1 inch or smaller, supports belong about three feet apart. Larger diameter piping is stiffer and can span a bit farther between supports, so the spacing increases to four feet. This balance helps keep the pipe in proper alignment, accommodates temperature expansion, and protects fittings from stress. The other spacing options would either require too many supports for the larger pipes or allow too much span for the smaller pipes, which isn’t consistent with standard practice.

Spacing for horizontal CPVC piping is set to control deflection and joint stress between supports. Smaller piping is more prone to sag between hangers, so it needs closer support. For CPVC that is 1 inch or smaller, supports belong about three feet apart. Larger diameter piping is stiffer and can span a bit farther between supports, so the spacing increases to four feet. This balance helps keep the pipe in proper alignment, accommodates temperature expansion, and protects fittings from stress. The other spacing options would either require too many supports for the larger pipes or allow too much span for the smaller pipes, which isn’t consistent with standard practice.

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