Question 4927Deck General70% to pass
A jack-up has 8 inches of trim by the stern. Calculations show that the moment required to change trim one inch is 500 foot-kips. To level the unit, how far must a weight of 50 kips be transferred toward the bow?
AI Explanation
The correct answer is C) 80.0 feet.
To level the unit, the weight of 50 kips must be transferred toward the bow a distance of 80.0 feet. This is calculated by using the formula: Moment required to change trim one inch = 500 foot-kips. Since the unit has 8 inches of trim by the stern, the total moment required to level the unit is 8 x 500 = 4,000 foot-kips. Dividing this moment by the weight of 50 kips gives the distance of 80.0 feet that the weight must be transferred to level the unit.
The other options are incorrect because they do not correctly apply the given information and formula to calculate the required distance to level the unit.
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