Refrigeration & Air Conditioning USCG Question #993 (Set 20)

What is the drive arrangement of refrigeration compressor shown in figure "B" of the illustration? 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' depicts a welded, fully hermetic compressor where the motor and compressor are sealed within a welded steel shell, preventing shaft seal leaks common in open-drive marine refrigeration installations.

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