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123kduncan 123kduncan
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6 years ago
The low-side gauge is called:
 
  A) A cold gauge. B) A high-pressure gauge.
  C) A vacuum gauge. D) A compound gauge.


[Ques. 2] A compressor that uses an impeller to throw refrigerant from the center outward is a:
 
  A) Screw compressor. B) Centrifugal compressor.
  C) Scroll compressor. D) Rotary compressor.


[Ques. 3] A compressor that uses an offset rolling piston that seals against a blade that remains stationary and moves in and out of its slot to seal against the rolling piston is a:
 
  A) Reciprocating compressor. B) Stationary blade rotary compressor.
  C) Rotary screw compressor. D) Rotary blade rotary compressor.


[Ques. 4] A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called:
 
  A) Slush. B) Propylene glycol. C) Hydraulic fluid. D) Brine.


[Ques. 5] What type of compressors contain the compressor and motor together inside a welded steel housing?
 
  A) Reciprocating B) Open compressors
  C) Hermetic compressors D) Semihermetic compressors
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killmenowpleasekillmenowplease
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6 years ago
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123kduncan Author
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#2
6 years ago
Thank you soooo very much, it was really helpful and kind of you to answer my q's
wrote...
#3
6 years ago
You're welcome, once again
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