Your vessel is carrying 24,000 barrels of oil for discharge. The cargo hoses have an inside diameter of eight inches. The container around the loading manifold must hold __________.

Correct Answer: Option A — three barrels

According to 33 CFR 155.320, manifold containment capacity for vessels transferring oil with hoses under 4 inches is 1/2 barrel, 4 to 12 inches requires 1 barrel, and over 12 inches requires 2 barrels. For an 8-inch hose, 3 barrels of total containment capacity is mandated.