Modulating dampers in air handling systems are NOT used:
a. To mix different air flows, such as outdoor air and recirculated air, in the correct proportions
b. To vary the volume of conditioned air needed to meet load requirements
c. As face dampers, to control the volume of air that goes through a cooling or heating coil
d. As bypass dampers to throttle the air flow around a heating or cooling coil
e. As relief dampers
Answer: E