Question 4275 Deck General

70% to pass

The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that 4087 long tons of ballast are added at an average VCG of 8.32 feet, and upon arrival at 45 feet, port and starboard ballast tanks 1, 3, and 8 are slack. What is the new KGL?

A 51.65 feet
B 52.67 feet
C 55.16 feet
D 62.24 feet
AI Explanation

The correct answer is C) 55.16 feet. The key is that adding 4087 long tons of ballast at an average VCG of 8.32 feet changes the vessel's overall center of gravity, which is represented by the new KGL (vertical center of gravity from the keel). By using the given information and the principles of stability calculations, the new KGL can be calculated to be 55.16 feet. The other answer choices are incorrect because they do not accurately reflect the new KGL after the ballasting operation described in the problem. Calculating the change in KGL is a standard stability calculation that is essential knowledge for the US Coast Guard Captain's License Examinations.

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