Slag buildup on boiler furnace refractory is undesirable because it causes __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — peeling or spalling of the brickwork
In USCG Steam Plants (Boilers & Turbines), regarding 'Slag buildup on boiler furnace refractory is undesirable because it causes', the verified engineering fact is: 'peeling or spalling of the brickwork'.
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