NV C-21F Chilled And Hot Water Systems Practice Questions - Nevada C-21F Chilled And Hot Water Systems Contractor Examination Exam

A closed hydronic chilled- or hot-water loop is best described as which of the following?

An open basin that continuously dumps circulating water to the sanitary sewer A sealed, pressurized circuit that recirculates the same treated water through the plant, piping, and terminal coils A once-through city-water line that discharges after a single pass through the coil A potable-water distribution system serving lavatories and water closets

Correct Answer:

A sealed, pressurized circuit that recirculates the same treated water through the plant, piping, and terminal coils

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