USCG Exam PracticeFirefighting, damage control, and emergency response
A fire in the machinery space cannot be controlled by portable extinguishers. According to the recommended emergency instructions, which action should be taken regarding a fixed extinguishing system?
- A. Activate the fixed extinguishing system only after notifying the Coast Guard
- ✓ Shut off fuel supply and ventilation and activate the fixed extinguishing system if installedCorrect
- C. Use water on the fire before activating the fixed system to conserve the fixed agent
- D. Open all hatches to vent heat before activating the fixed extinguishing system
Why B is correct
46 CFR §185.512(a)(3)(iv) directs that for a fire in machinery spaces, crew shall shut off fuel supply and ventilation and activate the fixed extinguishing system if installed. Opening hatches would reintroduce oxygen and undermine the system's effectiveness.
Cited:46 CFR §185.512