Engine_2014 : Electricity - 517/2299
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| As shown in the illustrated flow diagram for a self-contained recovery unit designed for the recovery of refrigerants from high pressure appliances as defined by the EPA Clean Air Act rules, what is the status of the solenoid valves when the recovery unit is in the direct liquid recovery mode? |
| A) SV1, closed SV2, closed SV3, open SV4, open |
| B) SV1, closed SV2, open SV3, closed SV4, open |
| C) SV1, open SV2, open SV3, closed SV4, closed |
| D) SV1, open SV2, closed SV3, open SV4, closed |
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