A suction superheat measurement higher than the manufacturer's recommended superheat setting ...

A suction superheat measurement higher than the manufacturer's recommended superheat setting indicates that:
 
  A) The system is operating even better than the manufacturer's design.
  B) Too little refrigerant is being fed into the evaporator.
  C) The system is operating correctly.
  D) Too much refrigerant is being fed into the evaporator.

 Q. 2

Select possible cause of an iced up evaporator on a commercial freezer. You may choose more than one.
 
  A) Bad defrost timer motor B) Bad evaporator fan motor
  C) Open defrost heaters D) Dirty condenser
  E) Shorted defrost termination switch F) Bad condenser fan motor

 Q. 3

Over defrosting is caused by:
 
  A) A defrost initiation failure B) A condenser fan failure
  C) A compressor failure D) A defrost termination failure