Rhode Island Journeyman Plumber Practice Exam

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Study for the Rhode Island Journeyman Plumber Exam. Prepare with flashcards and multiple choice questions, each with hints and explanations. Achieve success in your plumbing career!

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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A commercial food waste grinder should have a minimum outlet of _____________?

1 inch
2 inches
3 inches
4 inches

The correct answer is: 2 inches

The correct answer is based on plumbing codes and standards that dictate the minimum outlet size for commercial food waste grinders. A minimum outlet of 2 inches is necessary to ensure that food waste can be effectively drained without the risk of clogging. Commercial food waste grinders process solids that require sufficient drainage capacity due to the density and volume of the waste generated. Using a 2-inch outlet allows for the efficient passage of ground material and prevents the potential buildup of waste, which could lead to blockages in the plumbing system. While smaller outlet sizes may seem sufficient, they can lead to frequent backups and maintenance issues in a commercial setting where the volume of waste is significantly higher than in residential applications. Thus, a 2-inch outlet strikes a balance between adequate drainage and ease of maintenance, making it the minimum acceptable size for these devices in commercial plumbing installations.