Engine : Refrigeration AC - 451/610
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| In a dry-type direct expansion refrigeration evaporator, what is true concerning the evaporator coils? |
| A) the coils are covered on the outside with insulation |
| B) the coils are coated on the inside with insulation |
| C) the coils are surrounded on the outside by refrigerant |
| D) the coils are surrounded on the outside by air |
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