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The Ozone depletion potential (ODP) of R-22 is _____ of R-11 refrigerant:
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Screw compressor is a positive displacement compressor:
______ has the lowest boiling temperature.
Which of the following is used for testing the leaks in the entire refrigeration circuit before it can be charged with refrigerant:
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The presence of refrigerant vapor upstream of the _____ is very undesirable
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Which one of the following is largest ozone depletion substation that is emitted through activities of human: