You have determined that a cargo space on a freight vessel is 45 feet by 36 feet by 62 feet. How many pounds of carbon dioxide is required for this space?
• Fixed CO₂ fire-extinguishing systems for cargo spaces on freight vessels • How to compute volume in cubic feet from length, breadth, and height • Regulatory CO₂ quantity per cubic foot required for cargo spaces (from 46 CFR or your exam reference tables)
• First, calculate the total volume of the cargo space in cubic feet. What single number do you get when you multiply all three dimensions? • Once you know the volume, what constant (pounds of CO₂ per cubic foot) applies specifically to cargo spaces on freight vessels in your regulations or study tables? • After you multiply the volume by that constant, which of the answer choices is closest to your result?
• Confirm your volume calculation: length × breadth × height, with all dimensions in feet. • Verify from your materials the correct CO₂ pounds per cubic foot for cargo spaces (do NOT use the value for machinery spaces or other compartments). • After multiplying volume × required lb/ft³, check that your final number matches exactly one of the options before selecting it.
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