The SS AMERICAN MARINER is ready to bunker...

Question 1 / 2066636eec28f7522a1c51cbef

Question 1 of 2066636eec28f7522a1c51cbef

The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-04", AFT 17'-06". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0180 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

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66636eec28f7522a1c51cbef

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🔍 Key Concepts

• Use the drafts (FWD and AFT) to enter the hydrostatic data for SS AMERICAN MARINER and find the ship’s displacement at the time of bunkering. • From the white pages free-surface tables, find the free-surface moments (FSM) for each tank listed in ST-0180, based on the tonnages in those tanks. • Apply the basic formula for free surface correction: FSC = ΣFSM / Displacement, watching units and any specific gravity notes in the book.

💭 Think About

• Which of the tanks listed in ST-0180 are treated as slack tanks for free-surface purposes, and how do you handle port and starboard pairs? • After you obtain an FSM for each relevant tank from the white pages, what must you do with all those FSM values before you can get a single correction in feet? • How does the ship’s displacement at the given drafts affect the size of the final free-surface correction, and where do you read that displacement from in the reference book?

✅ Before You Answer

• Confirm you are using the correct ship (SS AMERICAN MARINER) and the correct hydrostatic page for the given drafts. • Verify that the FSM values you pick from the white pages correspond to the same tonnages shown in ST-0180 and the correct tank IDs (DB vs DT, CL vs P/S). • Before choosing an answer, double-check that your final FSC in feet equals (sum of all FSMs) ÷ (displacement) with units consistent (ton–feet and long tons).

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Question 1 of 20

1.15 feet

1.25 feet

1.31 feet

1.48 feet

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Question 1 / 2066636eec28f7522a1c51cbef

Question 1 of 2066636eec28f7522a1c51cbef

Back

Question 1 of 20

66636eec28f7522a1c51cbef

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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