Engine Safety (Supplementary) USCG Q#438 (Set 6)

The upper piston rings in large, slow-speed, two-stroke/ cycle diesel engines are most effectively lubricated by oil __________.

Official USCG Answer & Rule Citation

Correct Answer: Option A — fed from mechanical lubricators

In USCG Motor Plants (Diesel Engineering), regarding 'The upper piston rings in large, slow-speed, two-stroke/ cycle diesel engines are most effectively lubricated by oil', the correct operational principle is: 'fed from mechanical lubricators'.

All Engine Safety (Supplementary) Sets Practice Set 6