Engine : Expired / Refrigeration AC - 54/252
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| Concerning frost appearing on one set of evaporator coils of a multi-box, direct expansion type refrigeration system, what is true? |
| A) the frost can be quickly removed by simply shutting off fluid flow to the coils |
| B) the frost will assist in increasing the refrigeration effect |
| C) the frost will increase the value of superheat to the fluid leaving the coils |
| D) the frost can be removed by passing hot vapors through the coils |
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