Illinois Plumbing Code Practice

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Prepare for the Illinois Plumbing Code Test! Enhance your skills with diverse multiple-choice questions and detailed explanations. Ace your plumbing exam with ease!

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 many inches above the flood level rim of the highest fixture should vents terminate independently above the roof according to the Illinois Plumbing Code?

4 inches
6 inches
8 inches
10 inches

The correct answer is: 6 inches

According to the Illinois Plumbing Code, vents must terminate independently above the roof at a height of at least 6 inches above the flood level rim of the highest fixture being served. This requirement helps to ensure proper venting and prevents potential blockages or issues that could arise from environmental factors, such as snow or debris accumulation, which could affect the system's performance. While other inch measurements may seem feasible, they do not align with the established guidelines that prioritize effective drainage and ventilation in plumbing systems. Therefore, the specification of 6 inches is critical for maintaining proper air pressure within the plumbing system and ensuring efficient operation.