USCG USCG Motor
Set 10 • Question #45 of 382
Launch Interactive Practice Room The upper piston rings in large, slow-speed, two-stroke/ cycle diesel engines are most effectively lubricated by oil __________.
A
fed from mechanical lubricators
✓ Correct Answer
B
thrown off from the main bearings
C
supplied from wick fed drip lubricators
D
flow from a centrifugal or banjo oiler
USCG NMC Regulatory Explanation
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'.
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