A. It is very essential that burners be level and throw flames just to clear floor of arch in order to derive full benefit of heating surface, as the draft has a great tendency to elevate flames, at opposite end of the fire-box.
36. Q. Are you aware that in course of time the atomizer port will become worn too large and will discharge too large a volume of steam to properly atomize, and the remedy?
A. Yes; the lip or bushing should be closed to proper opening so that steam will be restricted at the nozzle and escape with a bursting effect to properly atomize the oil instead of flowing out in quantities against flash walls before it has time to ignite.
37. Q. What is the real object of having the fire-box lined with bricks, and will engine steam without them?
A. Not so well as with the brick, the sheets being in contact with water are too cool to flash the oil readily and hence the use of what is called a "flash wall" built of fire brick and heated to a very high temperature aids combustion very materially.
38. Q. Do you consider it your duty to keep close inspection of brick work as to need of repairs, such as air entering between brick and side sheets?
A. Yes. To see that plaster is kept between the walls and sheets to keep cold air from being drawn in.
39. Q. Will engine steam if brick falls in front of burners or in path of flame and what may be done?
A. No. Remove them with the brick hook or rod by pulling them out through damper of draft pan.
40. Q. Where engine is equipped with an oil-reheater or oil line, do you consider it a help to engine's steaming qualities when used?