Which term refers to access enabling a fixture or appliance to be reached without removing any obstructions?

The term that refers to access enabling a fixture or appliance to be reached without removing any obstructions is "ready access." This concept is essential in plumbing and building codes because it ensures that fixtures and appliances can be easily accessed for maintenance, inspection, or repair without the need to move furniture, walls, or other obstacles. Ready access is crucial for the safety and functionality of plumbing systems, as it allows for prompt responses to issues that may arise.

In contrast, restricted access would imply that there are barriers preventing straightforward entry to the fixture or appliance, which can complicate any necessary work. Available access suggests a general availability but does not necessarily convey the ease of access for maintenance. Open access could imply a clear path but lacks the specificity of being readily accessible for plumbing tasks. Therefore, ready access is the most precise term in the context of plumbing and maintenance.