The Traveling Engineers' Association to Improve the Locomotive Engine Service of American Railroads / Examination Questions and Answers for Firemen for Promotion and New Men for Employment

by Traveling Engineers' Association

A. To the distributing valve reservoir.

124. Q. How many chambers has the distributing valve reservoir?

A. Two; pressure chamber and application chamber.

Fig. 8: Release, Automatic or Independent.
Connections: MR, Main Reservoir Pipe; IV, Distributing Valve Release Pipe; II, Application Cylinder Pipe; CYLS, Brake Cylinder Pipe; BP, Brake Pipe.

125. Q. Name the different pipe connections to the distributing valve reservoir.

A. Referring to Fig. 8, the connection marked "MR" is the main reservoir supply pipe; "II", application cylinder pipe; "IV", distributing valve release pipe; "BP", brake pipe; "CYLS", brake cylinder pipe.

126. Q. To what do these different pipes connect?

A. The main reservoir supply pipe connects the distributing valve with the main reservoir pipe. The application cylinder pipe connects the application cylinder of the distributing valve with the independent and automatic brake valves. The distributing valve release pipe connects the application cylinder exhaust port in the distributing valve with the independent brake valve, and through it, when in running position, to the automatic brake valve. The brake cylinder pipe connects the distributing valve with the different brake cylinders on the locomotive. The brake pipe branch pipe connects the distributing valve with the brake pipe.