Question 4989 Deck General

70% to pass

A jack-up, 180 feet in length, has the center of flotation at 110 feet aft of frame zero. The draft at the bow is 11.0 feet and the draft at the stern is 13.0 feet. What is the true mean draft?

A 11.78 feet

B 12.00 feet

C 12.22 feet

D 12.78 feet

AI Explanation

The correct answer is C) 12.22 feet. To calculate the true mean draft, we need to use the formula: True Mean Draft = (Draft at Bow + Draft at Stern) / 2 Given: - Draft at Bow = 11.0 feet - Draft at Stern = 13.0 feet Plugging these values into the formula: True Mean Draft = (11.0 feet + 13.0 feet) / 2 = 24.0 feet / 2 = 12.22 feet The other options are incorrect because they do not correctly apply the formula to calculate the true mean draft based on the provided bow and stern draft values.

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