Question 4816 Deck General

70% to pass

A semisubmersible displacing 17,600 long tons has an LCG 3.2 feet forward of amidships. Bulk, weighing 400 long tons, is loaded into P-tanks located 50.8 feet aft of amidships. What is the new LCG?

A 0.80 foot forward of amidships
B 1.20 feet forward of amidships
C 2.00 feet forward of amidships
D 4.40 feet forward of amidships
AI Explanation

The correct answer is C) 2.00 feet forward of amidships. To calculate the new LCG, we need to use the formula for the center of gravity: New LCG = (Original LCG * Original Displacement + Load Moment) / New Displacement Given: Original LCG = 3.2 feet forward of amidships Original Displacement = 17,600 long tons Load Moment = 400 long tons * 50.8 feet aft = 20,320 long ton-feet New Displacement = 17,600 + 400 = 18,000 long tons Plugging these values into the formula: New LCG = (3.2 * 17,600 + 20,320) / 18,000 New LCG = 2.00 feet forward of amidships The other options are incorrect because they do not correctly apply the formula to calculate the new LCG based on the given information.

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