Your vessel has taken on 25,000 gallons of fuel with an API gravity of 30.4 at 60°F. Using the table shown in the illustration, how many long tons of fuel have you taken onboard? See illustration GS-0149.
• Use the API Gravity 60°F = 30.4 row in the left block of the table. • Pick the correct column: you have gallons and want weight, so you need pounds per U.S. gallon at 60°F, not gallons per pound. • Convert total pounds of fuel to long tons (1 long ton = 2,240 lb) after you multiply.
• From the table, what is the number of pounds per gallon that corresponds exactly to API 30.4? • Once you multiply pounds/gallon by 25,000 gallons, how many total pounds do you get, and what happens when you divide that by 2,240? • After converting to long tons, which answer choice is closest to your calculated value?
• Confirm you used the 30.4 API row, not 30.0 or 31.0. • Verify you selected pounds per U.S. gallon (left numeric column for that row), not U.S. gallons per pound. • Double‑check the final step uses 1 long ton = 2,240 lb, not 2,000 lb (short ton).
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