🔍 Key Concepts

• 46 CFR Part 95 – Fire Protection for Vessels (pay attention to the specific table for engine room fire extinguishing requirements on cargo vessels) • Difference between hand portable and semi-portable extinguishers, and which agents (CO₂, foam, dry chemical) are typically used for machinery spaces and oil-fired boilers • How total required protection is often expressed as an equivalent quantity of extinguishing agent, not just number of extinguishers

💭 Think About

• Which extinguishing agents are most effective on oil-fuel and machinery space fires: foam, CO₂, or dry chemical—and how might regulations combine them? • Does 46 CFR Part 95 require both hand-portable and semi-portable units in the engine room, and do these answer choices look like they could reasonably cover multiple required units? • Compare the relative size of protection each option gives. For an engine room on a 25,000 GT vessel with two 10,000 HP boilers, does the amount in any choice seem too small or unbalanced for that hazard?

✅ Before You Answer

• Look up the specific table in 46 CFR Part 95 that lists minimum quantities of hand portable and semi-portable extinguishers for machinery spaces on cargo vessels of this size • Verify which agents (CO₂, foam, dry chemical) are required or accepted for oil-fired boiler rooms and how many pounds or gallons correspond to a single required unit • Check whether the regulation allows combinations of agents/units to satisfy the requirement, or if it specifies a particular minimum type and quantity for the engine room