Which of the following creates the greatest restriction of airflow?
Posted: Mon Jan 30, 2023 7:26 am
Which of the following creates the greatest restriction of airflow?
A. A dirty fan motor
B. A dirty plenum
C. A dirty coil
D. A dirty return duct
A. A dirty fan motor
B. A dirty plenum
C. A dirty coil
D. A dirty return duct