Question 4857Deck General70% to pass
A semisubmersible, displacing 20,500 long tons, has vertical moments of 1,060,000 foot-long tons. What is the change in KG if 500 long tons are discharged from a VCG of 120 feet?
AI Explanation
The correct answer is B) 1.71 feet downward.
To determine the change in KG (Vertical Center of Gravity) when 500 long tons are discharged from a semisubmersible with a displacement of 20,500 long tons and a vertical moment of 1,060,000 foot-long tons, we can use the formula:
Change in KG = (Vertical Moment Change) / (Displacement)
The vertical moment change is the product of the discharged weight (500 long tons) and the VCG (120 feet). Therefore, the vertical moment change is 500 x 120 = 60,000 foot-long tons.
Plugging this into the formula:
Change in KG = 60,000 / 20,500 = 1.71 feet downward
The other options are incorrect because they do not accurately reflect the change in KG based on the given information.
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