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!

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Each trap shall have a water seal of how many inches?

The correct answer is: 2

The correct answer is that each trap shall have a water seal of 2 inches. This requirement is specified in plumbing codes to ensure that traps effectively prevent the passage of sewer gases into buildings while allowing wastewater to flow freely. A 2-inch water seal provides a sufficient barrier against odors while also accommodating drainage for typical residential and commercial plumbing fixtures. Having a proper water seal is essential for maintaining sanitary conditions and ensuring the efficient operation of the plumbing system. While other measurements may serve a purpose in specific contexts or types of fixtures, the 2-inch requirement is standard for most traps in typical plumbing applications.