USCG Exam PracticeLube oil and fuel oil systems
According to 46 CFR §56.50-60, oil piping that conveys fuel oil to equipment located near an open flame or parts operating above 500 °F must be of what material?
- ✓ Seamless steelCorrect
- B. Seamless drawn annealed copper
- C. Ductile cast iron ASTM F1155
- D. Nickel copper alloy
Why A is correct
46 CFR §56.50-60(j) requires that piping conveying fuel oil or lubricating oil in proximity to equipment with an open flame or parts operating above 500 °F must be of seamless steel. Copper tubing is specified for gasoline systems under §56.50-70, not for high-heat fuel oil runs.
Cited:46 CFR §56.50-60