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Seven7Seven Seven7Seven
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6 years ago
How is the airflow adjusted on most commercial air handlers?
 
  A) By moving the speed tap on the blower motor
  B) By adjusting the pitch of the blades on the blower wheel
  C) By increasing or decreasing the voltage to the fan motor
  D) By adjusting the sheave on an adjustable pulley

 Q. 2

The lowest evaporator coil temperature that traditional mechanical compression systems can attain is approximately:
 
  A) 0F. B) -00F. C) -40F. D) -250F.

 Q. 3

A system that uses the space above a drop ceiling for return air is called
 
  A) a spatial air distribution system B) a drop ceiling return system
  C) a static regain system D) an extended plenum system
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dymasrajadymasraja
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6 years ago
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Seven7Seven Author
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#2
6 years ago
Such an awesome helper!
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