Question 4873Deck General70% to pass
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for transverse free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged?
AI Explanation
The correct answer is D) 68.59 feet.
The height of the center of gravity (VCG) is corrected for the transverse free surface effects when the contents of the salt water ballast tanks are discharged. This causes the VCG to shift higher, increasing the overall height of the center of gravity. The calculation to determine the new VCG considers the change in weight and moment due to the discharged ballast, which results in the VCG increasing to 68.59 feet.
The other options are incorrect because they do not accurately reflect the change in VCG after the ballast tanks are discharged. The correct answer of 68.59 feet is the proper calculation considering the transverse free surface effects.
Related Questions
#4871 What are the maximum vertical moments including free surface moments permitted on the DEEP DRILLER at a draft of 60 feet if the winds are greater than 70 knots? #4872 What are the maximum vertical moments, including free surface moments, permitted on the DEEP DRILLER at a draft of 60 feet if the winds are less than 70 knots? #4874 Which is NOT a potential hazard of approaching close to an iceberg? #4875 A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern? #4876 While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers a sudden unexpected inclination to starboard and forward. Strong winds and high waves are from the port quarter. Among the possible causes, you should consider _______________.