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Author Question: Which component uses the properties of AC induction to step up or step down voltage for particular ... (Read 77 times)

HudsonKB16

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Which component uses the properties of AC induction to step up or step down voltage for particular HVACR applications?
 
  A) Transformer B) Diode C) Start capacitor D) Contactor

Question 2

Once acid is created within the refrigeration system:
 
  A) Dry nitrogen must be used to reverse the increase in system high-side pressure caused by the acid.
  B) It can cause a burnout when the refrigerant is exposed to the compressor motor.
  C) Only a multiple evacuation procedure can be used to evacuate the refrigeration system.
  D) It becomes impossible to remove brazing oxides and metal particles from the system, even if a filter drier is used.



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Perkypinki

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Answer to Question 1

A

Answer to Question 2

B





 

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