Which of the following is a correct procedure after placing a yield sign?

The procedure of ensuring that a yield sign is visible and positioned correctly is crucial for maintaining road safety and effective traffic regulation. Proper placement assures that drivers can easily see the sign from an adequate distance, allowing them to respond appropriately to yield traffic conditions. If the sign is obscured or poorly positioned, it undermines its purpose and can lead to accidents or confusion among drivers. Therefore, assessing its visibility and correct positioning is an essential responsibility in the context of traffic management.

In contrast, taking a photo for records, while potentially helpful in certain situations, is not a necessary procedure following the placement of a sign. Moving the sign afterward contradicts the fundamental premise of proper placement, and painting it for visibility can be unnecessary unless there are specific visibility issues that need to be addressed. Each of those other options does not contribute to ensuring the sign's immediate effectiveness in guiding traffic safely and accurately.