LOW PRESSURE LICENSING EXAM

What is the result of accumulation of large amounts of dissolved minerals such as calcium and magnesium on the boiler heating surface? a) Caustic embrittlement b) Scale c) Pitting d) Corrosion - correct answer b) Scale



Feedwater is heated to remove _____ from the boiler water to prevent corrosion. a) Oxygen b) CO2 c) Hydrogen d) Scale - correct answer a) Oxygen



_____ draft is air that is pulled through the boiler by a fan. a) Induced b) Natural c) Forced d) Com...
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