Question 5013Deck General70% to pass
While loaded as shown in the COASTAL DRILLER sample load form 3 (drilling), all of the casing is discharged. What is the change in LCG?
AI Explanation
The correct answer is C) 0.02 foot forward.
When the casing is discharged, the weight of the casing is removed from the vessel, resulting in a shift in the longitudinal center of gravity (LCG) forward by 0.02 feet. This is because the casing is located forward of the vessel's center of gravity, so removing its weight causes the LCG to move slightly forward.
The other answer choices are incorrect because they do not accurately reflect the small magnitude of the LCG shift caused by the casing discharge. Options A and B overestimate the change, while option D is incorrect as the LCG shifts forward, not aft.
Related Questions
#5011 What is the increase in transverse free surface moments for the COASTAL DRILLER if 2.0 feet of drill water is transferred from a full drill water tank 23 to an empty drill water tank 6? #5012 Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tank 20. See COASTAL DRILLER Sample Load Form Number 1 (Rig Move). What would be the change in longitudinal moments with this transfer? #5014 Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tank 13. See COASTAL DRILLER Sample Load Form Number 1 (Rig Move). What would be the change in longitudinal free surface moments? #5015 The COASTAL DRILLER is in transit at the load line draft. It discharges 279.93 kips of weight. The new draft is _______________.#5016 The COASTAL DRILLER is in transit at a draft of 10.0 feet. It loads 216.43 kips of weight aboard. What is the new draft?