Engine Safety (Supplementary) USCG Question #333 (Set 4)

The diesel engine wrist pin in the illustration is indicated by the component labeled __________. Illustration MO-0122

USCG Exam Illustration MO-0122
USCG Examination Diagram: Illustration MO-0122
Official USCG Answer & Rule Citation

Correct Answer: Option A — '7'

The wrist pin, or gudgeon pin, connects the small end of the connecting rod to the diesel engine piston body, allowing articulation of the assembly within the cylinder.

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