Engine Refrigeration (Supplementary) USCG Question #392 (Set 6)

What is the drive arrangement of refrigeration compressor shown in figure "B" of the illustration? GS-RA-41

USCG Exam Illustration GS-RA-41
USCG Examination Diagram: Illustration GS-RA-41
Official USCG Answer & Rule Citation

Correct Answer: Option B — welded, fully hermetic

Figure "B" displays a welded, fully hermetic compressor design where both the motor and compressor mechanism are sealed within a single welded steel shell, preventing refrigerant leaks and eliminating external shaft seals.

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