Illinois Plumbing Code Practice

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Prepare for the Illinois Plumbing Code Exam with comprehensive quizzes and tailored study materials. Test your knowledge with engaging questions and detailed explanations to boost your confidence and readiness for the exam!

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All piping conveying non-potable water shall be permanently identified by a continuous _______________ coloring so that the piping is readily distinguishable from piping carrying potable water.

  1. blue

  2. green

  3. purple

  4. yellow

The correct answer is: purple

Piping conveying non-potable water must be clearly distinguished from piping carrying potable water to prevent any cross-connections or contamination. According to the Illinois Plumbing Code, non-potable water piping should be identified by a continuous purple coloring. Purple is the standard color used to designate non-potable water piping in plumbing systems. This helps plumbers and inspectors easily differentiate between potable and non-potable water systems, ensuring the safety and integrity of the water supply. The other options, such as blue, green, and yellow, are not suitable for identifying non-potable water piping according to Illinois Plumbing Code standards.

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