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

Which 2021 IMC statement about expansion tanks on hot-water heating systems is correct?

An expansion tank is required only when the boiler input exceeds 400,000 Btu/h Each boiler in a multiple-boiler plant must have its own expansion tank An expansion tank shall be installed in every hot-water system, and multiple-boiler plants need not less than one tank Open-type tanks are prohibited; only ASME-stamped bladder tanks may be used

Correct Answer:

An expansion tank shall be installed in every hot-water system, and multiple-boiler plants need not less than one tank

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