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dcrone dcrone
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6 years ago
Which of the following refrigerant safety designations indicate the refrigerant is somewhat flammable?
 
  A) A2 B) B3 C) A1 D) B1


[Ques. 2] At what temperature does brazing take place?
 
  A) Less than 840F B) Above 1,800F C) Above 840F D) Less than 400F


[Ques. 3] If the water entering a water-cooled condenser is 80F, what would the leaving water temperature be?
 
  A) 90F B) 80F C) 110F D) 100F


[Ques. 4] The difference between brazing and soldering is that:
 
  A) Brazing occurs at higher temperatures than soldering.
  B) Brazing melts the base metal and soldering does not.
  C) Brazing never requires flux.
  D) Soldering occurs at higher temperatures than brazing.


[Ques. 5] How many BTUs does each pound of water evaporating remove?
 
  A) 970 B) 1070 C) 1170 D) 870
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medes1medes1
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6 years ago
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dcrone Author
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6 years ago
I appreciate what you did here
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