How would you determine the "B" end of a freight car?

The "B" end of a freight car is typically defined as the end that is equipped with the handbrake. This is crucial for securing the car when it is not in motion, especially when parking on a slope or grade. The handbrake is typically located on the side of the car, and identifying the "B" end is essential for operations involving loading, unloading, or maintaining the car's safety during stops.

In freight car operations, recognizing the "B" end correlates with various safety protocols and operational standards, especially in identifying which end to approach for certain maintenance or operational tasks. Having this knowledge ensures efficient and safe handling of freight cars in railyards or during transport.

While the other options present features of a freight car, they do not consistently define the "B" end in the way that the handbrake does. The coupler can be present at both ends of a car if it is equipped for a specific service. The emergency switch may also be on either end depending on the design of the car. Lastly, markings can vary extensively and are not a reliable indicator for determining the "B" end.