True or False: One line diagrams typically show voltages being fed into a building and the main transformers being used for the distribution of specific voltages.

One line diagrams are an essential tool used in electrical engineering to represent electrical systems in a simplified manner. They effectively show the flow of electricity from the source to various distribution points within a system, including buildings.

In a one line diagram, you will typically see representations of the incoming power supply, which includes the voltages being fed into a building, along with information about the main transformers that facilitate the conversion and distribution of these voltages. These diagrams may also include circuit breakers, feeders, and loads, all depicted in a single line format to clearly illustrate the relationships and flow of electricity without the need for extensive detail.

This clarity and efficiency make one line diagrams a crucial element in planning, operating, and maintaining electrical systems, which is why the statement about them showing voltages and transformers is accurate.