According to 46 CFR Part 95, a fixed CO₂...

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Question 1 of 205eccef9ebacbc34ba4d4649b

According to 46 CFR Part 95, a fixed CO₂ fire fighting system which contains a maximum of 2450 pounds of carbon dioxide to be maintained aboard the vessel, the minimum nominal pipe size of the fixed system branch lines to the various spaces must be __________.

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🔍 Key Concepts

• 46 CFR Part 95 requirements for fixed CO₂ fire-extinguishing systems • How system capacity (pounds of CO₂) affects required pipe sizes • Distinction between main supply manifold and branch lines to individual protected spaces

💭 Think About

• Look up the specific table or paragraph in 46 CFR Part 95 that ties CO₂ quantity ranges to required nominal branch line pipe sizes. • Ask yourself: for a system just under 2500 pounds of CO₂, is it in a lower, middle, or higher capacity range in the regulation’s table? • Consider whether the branch line size is usually smaller than, equal to, or larger than the manifold / supply line for a system of this size.

✅ Before You Answer

• Verify the exact CO₂ capacity range (in pounds) that 2450 lbs falls into in 46 CFR Part 95. • Confirm that you are reading the requirement for branch lines, not the manifold or discharge heads. • Double-check the nominal pipe size column that corresponds to that capacity range before choosing an answer.

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