The flat surfaces which require staying in a firetube boiler are the tube sheets, waterless, and

The flat surfaces which require staying in a firetube boiler are the tube sheets, waterless, and

The flat surfaces which require staying in a firetube boiler are the tube sheets, waterless, and



a) furnace tubes
b) flue gas baffles
c) uptakes
d) crown sheets
e) access doors





Answer: D


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