NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

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A three-story closed hydronic system rises 28 feet from the fill-valve gauge to the highest convector. What cold-fill pressure is required to keep about 4 psi at the top?

4 psi 12 psi 16 psi 28 psi

Correct Answer:

16 psi

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