What is the status of the F-2 fixtures shown with hash marks in the Veterinary Center drawings?

In architectural and electrical drawings, fixtures that are indicated with hash marks often signify that they are unregulated by switches or other control mechanisms. In this context, the F-2 fixtures labeled with hash marks indicate that they are always powered on, meaning they do not have a dedicated switch to control their operation. This is commonly used for fixtures that require continuous operation, such as those in medical environments or veterinary centers, where consistent lighting is critical for tasks that require visibility.

The other options, such as switched, dimmer-controlled, or motion sensor-controlled, suggest specific controls or interactions that are not indicated by the hash marks. Switched fixtures would have a switch controlling their function, dimmer-controlled fixtures would allow for variation in brightness, and motion sensor-controlled fixtures would turn on or off based on movement, none of which apply to fixtures designated as having hash marks. Therefore, it is clear that the F-2 fixtures must be classified as unswitched.