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Boiler water is treated to prevent ____
Scale, oxygen pitting, caustic embrittlement
Hardness is a measure of scale-forming ____ dissolved in water
Minerals
Boiler water having high alkalinity could develop ____
Caustic Embrittlement
Deposits of calcium and magnesium carbonates on the boiler heating surface cause ____
Scale
Pitting and channeling of boiler metal in the water are caused by ____
Oxygen and Carbon Dioxide
Chemicals added to the boiler water change the scale-forming salts into a(n) ____
Nonadhering Sludge
____ is small water particles and impurities carried out of the boiler into the steam lines
Carryover
Surface tension on the water in a steam drum is increased by ____
Impurities that float on the water surface
A direct cause of overheating of the boiler tubes is ____
Scale formation of the tubes
Priming is dangerous and can lead to ____
Water hammer
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