Illinois Plumbing Code Practice

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Prepare for the Illinois Plumbing Code Exam with our comprehensive quiz that includes flashcards and multiple-choice questions to bolster your understanding of plumbing standards and regulations. Gear up for your test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How far should horizontally suspended cast iron pipe be supported from each Hub or joint and at intervals?

12 inches, 5 feet
15 inches, 6 feet
18 inches, 5 feet
20 inches, 6 feet

The correct answer is: 18 inches, 5 feet

The correct interval for supporting horizontally suspended cast iron pipe is indeed 18 inches from each hub or joint, and these pipes should be supported at intervals of 5 feet. This standard helps maintain the integrity and stability of the plumbing system by preventing sagging and ensuring that any movement or vibrations in the system do not lead to damage or disconnection at the joints. In plumbing, proper support is essential to manage the weight and ensure that the joints remain tight and leak-free over time. The specific measurements established by the Illinois Plumbing Code take into account the weight of the cast iron material and the potential stresses it encounters. While the other choices may suggest alternative support distances and intervals, they do not conform to the established Illinois Plumbing Code standards for the required support of suspended cast iron pipe. Thus, the accurate dimensions are crucial for maintaining the functionality and safety of plumbing systems.