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!

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What is the minimum height the strainer of a roof drain must extend above the roof?

12 inches
24 inches
36 inches
48 inches

The correct answer is: 36 inches

The strainer of a roof drain must extend to a minimum height of 36 inches above the roof surface to ensure proper drainage and to reduce the risk of debris clogging the drain. This height provides enough clearance to allow water to flow freely and prevents any potential blockages caused by snowfall or accumulated leaves that could cover the strainer. Additionally, placing the strainer at this height helps to mitigate issues related to ponding water on the roof. It ensures that the roof’s drainage system is effective and maintains the integrity of the roof structure by avoiding water accumulation. The choices reflecting heights below 36 inches do not adequately address potential drainage complications and may lead to insufficient water flow. The 36-inch requirement strikes a balance between effectiveness and practicality in maintaining a well-functioning drainage system.