MS Mechanical Practice Questions - Mississippi Mechanical Contractor Examination Exam

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A closed-loop hydronic heating circuit delivers 80,000 Btu/h with a design water temperature drop of 20°F. Using GPM = Btu/h ÷ (500 × ΔT), what is the required flow?

4 gpm 6 gpm 8 gpm 16 gpm

Correct Answer:

8 gpm

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