USCG Exam PracticeFirefighting procedures aboard small vessels
A fire breaks out in the engine compartment of a small vessel. Which extinguishing agent should NEVER be used on this type of fire?
- A. CO₂
- B. Dry chemical
- ✓ WaterCorrect
- D. The fixed aerosol suppression system
Why C is correct
Engine compartment fires are typically Class B (flammable fuel) and Class C (energized electrical). Water must never be used on these fire classes. CO₂, dry chemical, and fixed aerosol suppression systems are the appropriate agents. (USCG Boatswain Manual Ch. 6 §6.2)