What is required of mechanical splices used for acceptance testing?

Mechanical splices, particularly in the context of acceptance testing, need to be user-friendly and reusable in their application. This is crucial because acceptance testing often entails multiple evaluations or adjustments to ensure proper connections within the system. If splices are designed for simplicity, they can facilitate more efficient testing and modifications as needed.

Reusable splices not only save time and effort during the testing process but also contribute to cost-effectiveness, as they can be employed for several tests rather than being discarded after a single use. Reusability underscores the importance of flexible testing approaches where adjustments and retesting are commonplace.

In contrast, the other options do not align with the purposes or requirements for acceptance testing. For example, indicating that splices must be permanent limits their adaptability during testing, while a requirement for them to be adjustable, though it may seem beneficial, does not prioritize usability and efficiency as effectively as reusability does. Lastly, stating that they should only be single-use contradicts the fundamental need for repeated testing and modifications characteristic of acceptance procedures.