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The Traveling Engineers' Association - To Improve The Locomotive Engine Service of American Railroads by Anonymous
page 32 of 246 (13%)
overheated?

A. They would be weakened and forced off the staybolts and an explosion
would occur.

32. Q. Would it be advisable to put water into a boiler after the sheets
had become bare and red hot?

A. No. The fire should be killed at once.

33. Q. What effect has the stoppage of a large number of flues?

A. The heating surface and draft are decreased by just that much area.

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.

35. Q. What part of the boiler has the greatest pressure? Why?

A. The bottom, because it is subject to the weight of the water in
addition to the steam pressure in the boiler.

36. Q. What are the advantages of the extension front end?

A. To provide room for suitable draft and spark appliances.

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