Coast Guard Exams
Question 4935Deck General70% to pass

Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tank 13. See COASTAL DRILLER Sample Load Form Number 1 (Rig Move). What would be the change in transverse free surface moments?

AI Explanation
The correct answer is A) 1492 ft-kips. The change in transverse free surface moment is calculated by multiplying the mass of the fuel oil transferred (25 kips) by the transverse distance between the centers of the two fuel oil tanks (59.68 ft). This results in a change in transverse free surface moment of 1492 ft-kips. The other answer choices are incorrect because they do not correctly calculate the change in transverse free surface moment based on the given information. Calculating the change in transverse free surface moment is a standard procedure for evaluating stability when transferring liquids between tanks on a vessel.

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