USCG Exam PracticeEngine-room safety and hazardous materials
According to 46 CFR §177.405, what must separate machinery and fuel tank spaces from accommodation spaces?
- A. A watertight bulkhead fitted with a drain valve
- ✓ Boundaries that prevent the passage of vaporsCorrect
- C. A cofferdam of at least 600 mm in width
- D. A noncombustible insulated partition with a vapor barrier
Why B is correct
46 CFR §177.405(c) states that machinery and fuel tank spaces must be separated from accommodation spaces by boundaries that prevent the passage of vapors. The regulation specifies the function of the boundary, not a specific cofferdam dimension or insulation type.
Cited:46 CFR §177.405