SC Boiler Installation Practice Questions - South Carolina Boiler Installation Contractor Examination Exam

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A closed hydronic system contains 400 gallons of water, not including the expansion tank. Using 2021 IMC Table 1009.2, what is the minimum pressurized diaphragm-type expansion-tank capacity?

17 gallons 25 gallons 33 gallons 60 gallons

Correct Answer:

33 gallons

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