USCG Exam PracticeLube oil and fuel oil systems
The lubricating oil system on a vessel must be designed to function satisfactorily under which permanent operating conditions of list and trim?
- A. 10° list and 5° trim.
- B. 15° list and 10° trim.
- ✓ 15° list and 5° trim.Correct
- D. 20° list and 5° trim.
Why C is correct
46 CFR §56.50-80(a) states that the lubricating oil system must be designed to function satisfactorily when the vessel has a permanent 15° list and a permanent 5° trim. The other combinations of angles are not the regulatory standard.
Cited:46 CFR §56.50-80(a)