65. Double sanitary tea fittings may be used when they receive the discharge from which of the following fixtures? Assume the fixtures are separated by 16 inches horizontally.
Answer: A
Double sanitary tea fittings may be used for back-to-back sinks.
Double sanitary tea fittings are specifically designed to accommodate the discharge from back-to-back sinks when they are installed 16 inches apart horizontally. This configuration allows for efficient drainage while minimizing the risk of clogs and ensuring proper waste flow.
A) Back-to-back sinks
This option is correct because double sanitary tea fittings are ideal for connecting two sinks that are positioned back-to-back. The design of the fitting allows for effective drainage from both fixtures, accommodating their discharge while maintaining optimal flow.
B) Back-to-back water closets
This option is incorrect as water closets typically require different types of fittings due to their unique waste discharge characteristics. Double sanitary tea fittings are not recommended for back-to-back water closets because the higher volume and pressure of waste from toilets can lead to potential clogs and inefficiencies.
C) Side-by-side water closets
This option is incorrect because side-by-side water closets also require specialized fittings that can handle the increased load and different discharge angles. Double sanitary tea fittings do not suit this configuration as they are not designed to manage the simultaneous discharge from adjacent water closets effectively.
D) Any back-to-back fixture with pumping action
This option is incorrect because while some fixtures with pumping action may have specific requirements, double sanitary tea fittings are not universally applicable to all such setups. Each installation requires careful consideration of the type of fixtures involved, and not all back-to-back fixtures with pumping action can utilize these fittings effectively.
Conclusion
The correct answer is A) Back-to-back sinks, as double sanitary tea fittings are specifically engineered to connect these fixtures efficiently, ensuring proper drainage. Other options fail to meet the functional requirements for their respective configurations, highlighting the importance of selecting appropriate fittings based on the type of fixtures involved.