USCG Exam PracticeElectrical troubleshooting and maintenance
Under 46 CFR, apparatus that may arc must be located in ventilated compartments to prevent accumulation of which substances?
- A. Carbon dioxide, nitrogen, and inert gases
- ✓ Flammable gases, acid fumes, and oil vaporsCorrect
- C. Steam, fresh water vapor, and salt spray
- D. Dust, lint, and metallic particles
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. Arcing in the presence of these substances creates a fire or explosion hazard.
Cited:46 CFR §111.01-3