Massachusetts Plumbers Journeyman Practice Exam

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Study for the Massachusetts Plumbers Journeyman Exam. Prepare with multiple choice questions, hints, and detailed explanations. Ace your licensing exam with confidence!

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When can short sweep fittings be used in a branch waste line?

When the waste line has no outlets
When the waste line serves multiple outlets
When the waste line serves only one outlet
When the waste line is vertical

The correct answer is: When the waste line serves only one outlet

Short sweep fittings can be effectively used in a branch waste line when the waste line serves only one outlet. This application is appropriate because short sweep fittings are designed to facilitate a smoother transition for waste flow, minimizing the potential for clogs and maintaining optimal drainage efficiency. Using this type of fitting in a single-outlet scenario allows for a more direct path for waste to travel, which helps reduce the friction and turbulence that could occur with sharper bends or more complex fittings. In contrast, employing short sweep fittings in waste lines with multiple outlets might not provide the same level of efficiency, as the complexity of the flow patterns and potential back-pressure could lead to issues such as drainage slowdowns or clogs. The fitting choice is also not suitable when the waste line is vertical, as vertical setups typically require different fittings that support gravity drainage effectively. Overall, utilizing short sweep fittings for a single outlet branch waste line promotes better drainage performance.