Which signal would be used to report a fire that is not related to a motor vehicle?

The appropriate signal for reporting a fire that is not related to a motor vehicle is Signal 36. This signal is specifically designated for fire incidents, whether they involve structures, vegetation, or other types of fires that do not pertain to the operation or problems associated with vehicles.

In the context of the Ohio State Highway Patrol and other emergency services, having distinct signals for various types of incidents is essential for effective communication. Using the correct signal allows responders to assess the situation quickly and allocate resources accordingly. The remaining options do not pertain to fire incidents unrelated to vehicles, which is why they are not the correct choice for this particular scenario.