Which statement about fixtures with concealed slip-joint connections is true?

Fixtures with concealed slip-joint connections require access panels to allow for maintenance and inspections. These types of connections are typically hidden behind walls or cabinetry, making it essential to provide access points so that a plumber can reach the joints if repairs or adjustments are necessary. Without access panels, it would be challenging to address any leaks or issues that might arise.

This design consideration ensures that plumbing systems remain functional while also safeguarding against potential damage that could occur from undetected leaks. Access panels enable easy access without needing to dismantle entire structures, enhancing the practicality of plumbing maintenance. This is why stating that these fixtures require access panels is accurate in the context of plumbing best practices.