What two air brake components work together to supply air to the brake cylinder of each car during an emergency application?

What two air brake components work together to supply air to the brake cylinder of each car during an emergency application?

• A. Service and pilot reservoirs
• B. Emergency and auxiliary reservoirs
• C. Main and auxiliary reservoirs
• D. Reservoirs in series

Answer: (B)

In an emergency brake application, the air to the brake cylinder on each car is supplied by two reservoirs that are designed to deliver a rapid and ample air volume: the emergency reservoir and the auxiliary reservoir. When an emergency signal is triggered, the car’s brake control (the triple valve) shifts to dump air from the brake pipe and feed the brake cylinder from these two reservoirs. The auxiliary reservoir provides the regular braking air, while the emergency reservoir adds extra stored air to ensure a quick, strong brake application across the train. The main reservoir is charged for normal operation, but it isn’t the immediate source for an emergency brake application.

In an emergency brake application, the air to the brake cylinder on each car is supplied by two reservoirs that are designed to deliver a rapid and ample air volume: the emergency reservoir and the auxiliary reservoir. When an emergency signal is triggered, the car’s brake control (the triple valve) shifts to dump air from the brake pipe and feed the brake cylinder from these two reservoirs. The auxiliary reservoir provides the regular braking air, while the emergency reservoir adds extra stored air to ensure a quick, strong brake application across the train. The main reservoir is charged for normal operation, but it isn’t the immediate source for an emergency brake application.