Engine_2014 : General Subjects - 2779/3524
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| The color of the refrigeration oil can indicate various operating conditions of the compressor/refrigeration system in which it is used. Black oil can be an indication of what condition? |
| A) copper plating caused by moisture in the system |
| B) bearing wear or piston scoring |
| C) carbonization resulting from air in the system |
| D) gasket breakdown |
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