What type of reservoirs are located at one end of a train car?

The correct answer identifies that both Auxiliary, Suspension, and Surge reservoirs are located at one end of a train car. In train systems, reservoirs serve different purposes, and understanding their functions helps clarify their placement.

Auxiliary reservoirs are designed to store compressed air for auxiliary systems, which include powering aspects of the train like door operations and brake systems when needed.

Suspension reservoirs are specifically used to maintain proper suspension levels, which contributes to ride quality and stability. They buffer pressure fluctuations that occur within the air suspension system.

Surge reservoirs play a critical role in managing and stabilizing the compressed air supply, particularly under varying operational conditions. They prevent sudden pressure changes, ensuring that the train's braking and other secondary systems operate smoothly without disruption.

Thus, having all three types of reservoirs at one end of the train car is essential for effective performance and reliability of various systems. The correct answer reflects a comprehensive understanding of the components designed to enhance safety and efficiency in train operations.