USCG Exam PracticeLube oil and fuel oil systems
Under 46 CFR, what is the minimum number of fuel oil service pumps required on a vessel with oil-fired main boilers, and what capacity must each pump have?
- A. One pump of sufficient capacity to supply all boilers at full power.
- ✓ Two pumps, each of sufficient capacity to supply all boilers at full power.Correct
- C. Two pumps whose combined capacity is sufficient to supply all boilers at full power.
- D. Three pumps, with two in service and one on standby at all times.
Why B is correct
46 CFR §56.50-65(b)(1) requires all vessels with oil-fired boilers to have at least two fuel service pumps, each of sufficient capacity to supply all boilers at full power, arranged so that one may be overhauled while the other remains in service. A single pump or a combined-capacity arrangement does not satisfy this requirement.
Cited:46 CFR §56.50-65(b)(1)