The area of an 8-in. duct is .35 sq. ft. You measure the velocity at a points in the duct and find the average velocity in the exhaust duct is 400 FPM. Multiply 400 Feet per Minute times the area of the duct, which is .35 square feet, to find 140 CFM exhaust fan airflow.
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What is the phone number for JP Morgan Chase Bank Syracuse New York? There are several JP Morgan Chase banks that are located in  Syracuse, New York. The phone numbers for these banks are (315)  424-2731, (315) 476-5870, and (315) 476-0987. 1 person found this useful.