The difference between residential heating and cooling systems ...

[B]

The difference between residential heating and cooling systems and commercial/industrial heating, cooling, or refrigerating facilities is:
 
  A) The number of people that occupy the building or facility.
  B) The amount of energy the building or facility uses.
  C) Whether the equipment or system is in a home or in a business.
  D) The size of the building or facility.

Question 2

A gas reciprocating compressor should be inspected once a year or after it has operated for ________ hours.
 
  A) 2,000 B) 4,000 C) 8,000 D) 6,000

[djofnc]

Answer to Question 1

C

Answer to Question 2

C

[B]

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