How many wheels are in a train engine?

The number of wheels on a train engine can vary depending on the type and design of the locomotive. Typically, freight locomotives have between 6 to 12 wheels, while passenger locomotives may have similar or slightly different configurations. Some larger locomotives, like those used for heavy freight, can have even more wheels, sometimes exceeding 12. The specific wheel arrangement is often referred to as the "wheel configuration" or "wheel arrangement."