The Forced-Air System Is Different from a Natural-Draft System, Where

Q1: One reason for using an extended plenum

Q2: The pressure in a duct system is

Q3: Friction due to air rubbing the walls

Q5: Galvanized sheet metal comes in several different

Q6: If the equivalent length of a transition

Q7: Explain the purpose of the supply duct.

Q8: A(n) _ can be connected to measure

Q9: A(n) _ºF temperature difference from the inside

Q10: The atmosphere exerts a pressure of _

Q11: If the velocity of air through an