8. Q. What pressure is usually carried in the main reservoir?

A. Ninety pounds in freight and 130 pounds in passenger service. But

where freight engines are equipped with duplex compressor governor, the

low pressure top is adjusted to ninety pounds and the high pressure top

to 130 pounds.

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 · 第 37 / 436 题