34. Q. Why are boiler checks placed so far away from the fire-box?

A. To introduce the water into the boiler at as great a distance from

the fire-box as possible. This permits the water to become heated to a

high temperature before it comes in contact with the fire-box and also

improves circulation.

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 65 / 436 题