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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How deep shall rock be removed when encountered in trenching?

To installation level of the pipe
3 inches below installation level
Minimum of 6 inches below
Minimum of 12 inches below

The correct answer is: 3 inches below installation level

When trenching and rock is encountered, the requirement to remove rock to a depth of 3 inches below the installation level of the pipe ensures that there is adequate space for the bedding material and pipe support. This depth allows for proper stability and helps prevent any potential contact between the rock and the pipe, which can lead to damage or misalignment over time. By allowing this minimum clearance, it facilitates the necessary adjustments and bedding that might be needed during the installation process, ensuring that the pipe is securely placed within a proper foundation. This practice is also aligned with code requirements and best practices in plumbing and construction to ensure long-term reliability and performance of the installed systems.