The reason for using a reducing plenum system is to ____.
A) reduce maintenance costs
B) reduce the operating cost of the system
C) provide easier means of fastening the takeoff fittings
D) maintain a constant pressure throughout the length of the trunk duct
Correct Answer:
Verified
Q5: The atmosphere exerts a pressure of _
Q6: The forced-air system is different from a
Q7: Duct systems can be plenum, extended plenum,
Q8: The main drawback of the extended plenum
Q9: Friction due to air rubbing the walls
Q11: The duct pressure equals the velocity pressure
Q12: The _ provides the pressure difference needed
Q13: A(n) _ can be connected to measure
Q14: Canvas collars are generally made of canvas
Q15: Airflow pressure in ductwork is measured in
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