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

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A rectangular sheet metal duct measuring 24 inches wide by 12 inches high handles an airflow rate of 2,400 CFM. What is the average air velocity inside the duct in feet per minute (FPM)?

1,200 feet per minute average velocity 1,400 feet per minute average velocity 1,600 feet per minute average velocity 1,800 feet per minute average velocity

Correct Answer:

1,200 feet per minute average velocity

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