🔍 Key Concepts

• 46 CFR requirements for fixed fire-extinguishing systems on MODUs (Mobile Offshore Drilling Units) • Typical locations requiring fixed CO₂ or other approved systems: machinery spaces with oil-fired equipment, flammable liquid storage, and paint lockers • Difference between portable extinguishers and fixed fire-extinguishing systems and where each is normally required

💭 Think About

• Which of the listed spaces present a serious, enclosed fire risk where rapid, total-flooding of the space is important? • On MODUs, do regulations generally protect just one type of high-risk space, or do they tend to address all enclosed spaces with significant flammable or combustible load? • Think about why CO₂ systems are dangerous to people: in which of these spaces would you normally keep personnel out during discharge, suggesting a fully enclosed, protected space?

✅ Before You Answer

• Verify in 46 CFR Part 108 (Fire Protection for MODUs) which spaces are specifically called out for fixed CO₂ or equivalent systems • Check whether paint lockers and flammable liquid storage areas are treated similarly under fire protection rules • Confirm whether the rule is written as "in each" of several spaces, or only in one specific type of space listed in the choices