Question 4405Deck General70% to pass
The DEEP DRILLER is operating as shown in Sample Load Form #4 (Drilling). Assume ballast added or discharged to remain at a constant draft is at a VCG of 10 feet. How much non-liquid load would have to be removed from an average height of 130 feet above the keel to meet the maximum allowable KG at a draft of 60 feet for winds greater than 70 knots?
AI Explanation
The correct answer is D) 524 long tons.
To meet the maximum allowable KG (vertical center of gravity) at a draft of 60 feet for winds greater than 70 knots, 524 long tons of non-liquid load would need to be removed from an average height of 130 feet above the keel. This is because the vessel's stability must be increased to meet the stability criteria for the given environmental conditions, which requires reducing the KG.
The other answer choices are incorrect because they do not accurately reflect the amount of non-liquid load that needs to be removed to meet the stability requirements.
Related Questions
#4403 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 longitudinal free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? #4404 Until a change to lightweight has been approved, the weights and moments shown in the Changes to Lightweight Record of the COASTAL DRILLER are treated as _______________.#4407 Where the seabed consists of sand or silt, the most severe potential problem for an independent-leg jack-up can result from _______________.#4408 The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, LM = 3 foot-long tons, FSML = 30,572 foot-long tons, and FSMT = 18,732 foot-long tons. What is the transverse free surface correction to KG? #4409 While the COASTAL DRILLER is in transit, stability is acceptable provided that neither the KGL nor the KGT exceed _______________.