USCG Exam PracticeLube oil and fuel oil systems
Fuel oil discharge piping from service pumps to burners must be constructed of which material and minimum wall thickness?
- A. Seamless steel, Schedule 40 minimum
- B. Welded steel, Schedule 80 minimum
- ✓ Seamless steel, Schedule 80 minimumCorrect
- D. Annealed copper-nickel, Schedule 80 minimum
Why C is correct
46 CFR §56.50-65(a) states that all discharge piping from fuel oil service pumps to burners must be seamless steel with a thickness of at least Schedule 80. Welded steel and non-metallic materials are prohibited; copper-nickel is permitted only in short lengths between the header manifold and atomizer head for flexibility.
Cited:46 CFR §56.50-65