Engine : Refrigeration AC - 74/610
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| To test for a suspected large refrigerant leak from an R-22 refrigeration system in an enclosed area, how should this be done? |
| A) perform a hydrostatic test with water |
| B) apply a soap solution to fittings seen to have oil residue |
| C) perform a standing vacuum test |
| D) use an electronic leak detector to check all fittings for leaks |
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