Engine Refrigeration (Supplementary) USCG Question #306 (Set 5)

As shown in figure "B" of the illustrated self-contained recovery unit connection diagrams, what is the recovery method supported by the connection scheme? GS-RA-33 Illustration GS-RA-33: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option A — direct vapor recovery

Direct vapor recovery extracts refrigerant solely in the gaseous phase from the system, routing it through the recovery machine compressor and condenser before trapping it in the recovery cylinder.

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