Which of the following is NOT a way to take the track out of service?

Taking a track out of service is a crucial procedure in ensuring safety on the railroad. The correct answer indicates that "verbal instruction" is not an officially recognized method for this action.

Using foul time is a formal process where a designated time frame is established during which the track cannot be used, thus effectively taking it out of service. Train orders serve as official instructions that dictate train movements and can include directives related to track conditions, including taking it out of service.

General notice is another formal way of communicating track status to ensure that all relevant personnel are informed properly and that appropriate precautions are in place.

In contrast, verbal instruction lacks the necessary documentation and formal process required for safety and accountability in railroad operations. It does not provide a reliable or traceable method for taking the track out of service, which is why it is not recognized as a valid method.