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HVAC
NATE Air Distribution Service Specialty
Duct System Diagnostics
Knowledge Check
Duct System Diagnostics
Knowledge Check
Knowledge Check
1 / 10
A Pitot tube traverse in a rectangular duct yields readings of 800, 850, 780, 820, and 750 FPM across a duct with a cross-section of 2.0 square feet. What is the approximate airflow?
A
850 CFM
B
2,000 CFM
C
1,700 CFM
D
1,600 CFM
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