California C-43 Sheet Metal Practice Questions - California CSLB C-43 Sheet Metal Examination Exam

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According to California Title 24, Part 6 energy efficiency standards, what is the maximum allowable total duct leakage rate for new residential HVAC duct installations during field verification testing?

5 percent of total system airflow rating 10 percent of total system airflow rating 15 percent of total system airflow rating 20 percent of total system airflow rating

Correct Answer:

5 percent of total system airflow rating

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