USCG Exam PracticeAuxiliary machinery and shipboard systems
Per 46 CFR, in a multiple boiler installation, each boiler's main, auxiliary, and desuperheater steam lines must be fitted with two valves. Which combination of valves is required?
- A. Two stop valves
- ✓ One stop valve and one stop check valveCorrect
- C. One stop check valve and one relief valve
- D. One stop valve and one gate valve
Why B is correct
46 CFR §56.50-15(d) requires that in multiple boiler installations, each boiler's main, auxiliary, and desuperheater steam lines be fitted with two valves: one stop valve and one stop check valve. Two stop valves or other combinations do not satisfy this requirement.
Cited:46 CFR §56.50-15