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!

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At what maximum setting in degrees Fahrenheit should the automatic safety water mixing device for lavatory faucets in public use be adjusted?

The correct answer is: 110

The maximum setting for the automatic safety water mixing device for lavatory faucets in public use should be adjusted to 110 degrees Fahrenheit. This temperature is established to ensure user safety while providing adequate comfort. Setting the maximum at 110 degrees minimizes the risk of scalding, especially important in public settings where individuals of all ages, including children and elderly persons, may be using the facility. In contrast, lower settings such as 90 or 100 degrees may not provide sufficient warmth for comfortable washing, while the setting of 120 degrees increases the risk of burns and is generally considered unsafe for public use. Therefore, 110 degrees strikes a balance between comfort and safety, aligning with health and safety regulations.