Engine Safety (Supplementary) USCG Q#349 (Set 5)

The diesel engine component labeled "5", shown in the illustration is known as the __________. Illustration MO-0122

USCG Exam Illustration MO-0122 — USCG Examination Diagram: **Illustration MO-0122**

Official USCG Answer & Rule Citation

Correct Answer: Option D — piston thrust washer

Component '5' acts as a thrust washer, managing lateral piston movement and maintaining proper clearances against side loads within the cylinder liner.

All Engine Safety (Supplementary) Sets Practice Set 5