USCG Exam PracticeLube oil and fuel oil systems
According to federal regulations, oil-piping systems for cargo or fuel oil must be separate from other piping systems as far as practicable. Under what condition may fuel oil and cargo oil systems be combined?
- A. When both systems carry Grade E oils only
- ✓ When the cargo oil system carries only Grade E oilsCorrect
- C. When approved by the Officer in Charge, Marine Inspection
- D. When both systems are fitted with positive shutoff valves at each tank
Why B is correct
46 CFR §56.50-60(a)(2) states that fuel oil and cargo oil systems may be combined only if the cargo oil systems contain Grade E oils. The restriction applies to the cargo oil system, not both systems jointly.
Cited:46 CFR §56.50-60(a)(2)