USCG Exam PracticeFirefighting, damage control, and emergency response
When a fire is discovered in a machinery space, which action should be taken FIRST regarding the fuel supply?
- A. Activate the fixed extinguishing system immediately before shutting off fuel
- ✓ Shut off fuel supply and ventilation to the affected spaceCorrect
- C. Open hatches to allow heat and smoke to escape before attacking the fire
- D. Apply water directly to the base of the flames to cool the fuel
Why B is correct
Per 46 CFR §185.512(a)(3)(iv), when fire is in machinery spaces, the prescribed action is to shut off fuel supply and ventilation and then activate the fixed extinguishing system if installed. Opening hatches would feed air to the fire, and water is inappropriate for fuel fires.
Cited:46 CFR §185.512