USCG Exam PracticeBoiler and steam propulsion fundamentals
Under 46 CFR §56.50-30, when a unit feed system is employed on a vessel with three or more boilers, what is the maximum number of boilers that may be served by any one auxiliary feed pump?
- A. One boiler per auxiliary pump.
- ✓ Two boilers per auxiliary pump.Correct
- C. Three boilers per auxiliary pump.
- D. There is no limit, provided the pump has sufficient rated capacity.
Why B is correct
46 CFR §56.50-30(e)(1) states that in vessels with three or more boilers using the unit feed system, not more than two boilers may be served by any one auxiliary pump. The auxiliary pump may be interconnected so that any pump can feed any boiler.
Cited:46 CFR §56.50-30