USCG Exam PracticeElectrical troubleshooting and maintenance
Under 46 CFR, apparatus that may arc must be located in ventilated compartments primarily to prevent the accumulation of which hazardous substances?
- A. Carbon dioxide and nitrogen
- ✓ Flammable gases, acid fumes, and oil vaporsCorrect
- C. Steam, dust, and dripping liquids
- D. Refrigerant vapors and inert gases
Why B is correct
46 CFR §111.01-3(b) states that apparatus that may arc must be ventilated or be in ventilated compartments in which flammable gases, acid fumes, and oil vapors cannot accumulate. Steam and dust are addressed in §111.01-3(a) in a different context.
Cited:46 CFR §111.01-3