The brake system operates optimally within which brake pressure range?

The optimal brake pressure range for a train's braking system is usually in the range of 70-90 pounds. Within this pressure range, the braking system is most effective in providing reliable stopping power without risking brake failure or excessive wear on the brake components. This range is designed to ensure maximum safety and efficiency in brake performance, allowing for controlled and steady deceleration.

Operating outside of this optimal range can lead to various issues. For instance, if the brake pressure is too low, the brakes may not engage properly, leading to longer stopping distances and reduced control. On the other hand, if the brake pressure is too high, it can cause the wheels to skid or lock up, leading to potential derailments or damage to the train's wheels and tracks.

Therefore, maintaining the brake pressure within this specified range of 70-90 pounds is crucial for ensuring both safety and operational efficiency in train operations.