Rhode Island Journeyman Plumber Practice Exam

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What is the minimum distance for waste from a commercial dishwasher installation?

12-24" inches
18-42" inches
24-36" inches
30-48" inches

The correct answer is: 18-42" inches

The minimum distance for waste from a commercial dishwasher installation is typically specified to prevent issues such as backflow and to ensure proper drainage. The correct answer indicates that a range of 18 to 42 inches is appropriate for positioning the waste line away from the dishwasher. This distance helps prevent any potential contamination from waste that could affect food safety. In many plumbing codes, this distance is crucial for maintaining sanitary conditions and facilitating efficient drainage. It allows for adequate space to accommodate any necessary plumbing fittings, which can vary in size and configuration depending on the specific installation requirements of the dishwasher. Furthermore, adhering to this distance helps ensure compliance with health regulations that mandate proper installation practices in commercial kitchen environments. In summary, the specified range of 18 to 42 inches not only meets legal and safety standards but also functions effectively in practical applications within commercial settings, ensuring both safety and efficiency in each installation.