Question 4814 Deck General

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A semisubmersible, with a TCG of 0.5 feet to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is discharged from P-tanks located 50 feet starboard of the centerline. What is the new TCG?

A 0.53 foot port of centerline
B 1.03 feet starboard of centerline
C 1.53 feet port of centerline
D 0.53 foot starboard of centerline
AI Explanation

The correct answer is C) 1.53 feet port of centerline. The reasoning is as follows: 1) The semisubmersible initially has a TCG of 0.5 feet to port. 2) When 400 long tons of bulk is discharged from the P-tanks located 50 feet starboard of the centerline, the center of gravity shifts towards the port side, increasing the TCG. 3) To calculate the new TCG, you can use the formula: new TCG = (initial TCG * displacement - moment of the discharged weight) / new displacement. Plugging in the values, the new TCG is 1.53 feet port of centerline. 4) The other options are incorrect because they do not correctly apply the formula and calculation to determine the new TCG.

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